Podcasts about planetary defense

One significant threat to life here on Earth is the possibility that a massive asteroid will collide with our planet and destroy life as we know it. To understand the possibilities, large surveys of the sky have found around 95% of potentially hazardous asteroids larger than a kilometer. Smaller asteroids, however, can also cause massive amounts of damage. Estimates range from 40 to 60 percent when it comes to asteroids over 100 meters in diameter, which would be considered city-killers. Even smaller asteroids, such as the 20-meter one that exploded over Chelyabinsk in 2013, can cause destruction and injury. The more asteroids we can find, the better our predictions and future protections will be. In light of this threat, scientists have used the JWST to detect 138 of the smallest asteroids (as small as 10 meters) ever observed in the asteroid belt. These tiny asteroids are important because they can become near-Earth objects (NEOs), posing a risk to Earth through possible impacts, including powerful explosions. By analyzing the size and frequency of asteroids, researchers found a significant change in the population of asteroids around 100 meters in size, likely due to collisions breaking larger asteroids into smaller ones. The observed asteroids originated from known asteroid families and were detected using advanced tracking and infrared imaging techniques. This research enhances our understanding of asteroid behavior and may aid in predicting and mitigating future asteroid threats. Join planetary astronomer Franck Marchis in a conversation with lead authors Artem Y. Burdanov and Julien de Wit as they discuss these smaller asteroids and what they can reveal about potential threats to our planet. (Recorded live 1 May 2025.)

# James Webb Space Telescope Uncovers Cosmic Mysteries: From Asteroids to Universe OriginsDive into the latest discoveries from the James Webb Space Telescope in this eye-opening episode of The Space Cowboy podcast. Learn how Webb's advanced instruments revealed surprising details about asteroid 2024 YR4, including its rocky surface and rapid spin rate – crucial knowledge for future planetary defense efforts.Journey 130 light-years away to the HR 8799 star system, where Webb directly detected carbon dioxide in the atmospheres of four exoplanets for the first time, revolutionizing our understanding of planetary formation. Then explore Webb's most mind-bending discovery yet: evidence that galaxies throughout the universe may rotate in a preferred direction, challenging fundamental cosmological theories and suggesting our universe might have been born rotating.From investigating why few stars form in the Milky Way's Central Molecular Zone to showcasing Webb's unprecedented infrared capabilities, this episode highlights how this remarkable telescope continues to transform our understanding of the cosmos and push the boundaries of astronomical discovery.

How likely is an asteroid to impact Earth? Neil deGrasse Tyson and Chuck Nice sit down with planetary scientist Rick Binzel, the creator of the Torino Scale, to discuss asteroid hazards, the results of the asteroid sample return, and the search for Planet 9.NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: https://startalkmedia.com/show/asteroids-headed-towards-earth-with-rick-binzel/Thanks to our Patrons Euclid A LoGiudice, Todd Thedell, Girolamo Castaldo, Scott E Mann, Stephen Luick, Lou Perreault, Tom Womack, jonas dravland, Carla Garner, Matthew Smith, Marcy Hansen, Dale Schurman, David LoMonaco, Manoj Chugh, Lynn Cade, James Dudley, Gaterdog44, Ally Whitchurch, George Pipe, Collin Brumm, Amanda Phillips, George Murray, Daniel Persaud, Jason Bennett, Damon, Dutt Bobba, Gregorio Sanford, Dre Adamenko, rohit chaudhary, Krys Kap, Lukasz Kosturek, Nicholas Smith, Martin Wegner, kaley knowles, SciFiGriffin, Lucas Sanjuan, Jacob Hodges, BRET ANDERSON, Irina Cher, R B, Norway man, Wayne Gosson, and Fireworks for Buddha for supporting us this week. Subscribe to SiriusXM Podcasts+ to listen to new episodes of StarTalk Radio ad-free and a whole week early.Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

PLANETARY DEFENSE GAINING VERA RUBIN OBSERVATORY IN CHILE AND NEO SURVEYOR IN ORBIT: 1/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world. 1957

PLANETARY DEFENSE GAINING VERA RUBIN OBSERVATORY IN CHILE AND NEO SURVEYOR IN ORBIT: 2/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world. 1963

PLANETARY DEFENSE GAINING VERA RUBIN OBSERVATORY IN CHILE AND NEO SURVEYOR IN ORBIT:  3/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world. 1940

PLANETARY DEFENSE GAINING VERA RUBIN OBSERVATORY IN CHILE AND NEO SURVEYOR IN ORBIT:  4/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world. 1956

On today's episode, we're diving into what's going on with Near-Earth Asteroid 2024 YR4. You may have heard online that this asteroid is on a trajectory to impact Earth on December 22nd, 2032. It's captured the zeitgeist and everyone's talking about it.  But what can we do in the meantime? We say - Let's learn! We need to science the $%#t out of this one! We're going to explore the idea of planetary defense, the level of impact if it does hit Earth in 2032, and how lucky we are to have successful missions like DART and HERA to lean on for our “armageddon” moment.  We'll also try to answer these questions: What is the Asteroid? What is the impact potential on Earth? How was it discovered? Why do the impact probabilities keep changing? What can we do about it? Why don't we just NUKE it? Keywords: asteroid 2024 yr4, planetary defense, impact probability, kinetic impactor, Dart mission, Hera mission, James Webb Space Telescope, automated detection, NASA funding, public interest, Tunguska event, city killer, orbital changes, nuclear option, planetary defense systems Timestamps: 00:00 Asteroid 2024 YR4 Overview and Initial Concerns 03:03 Discovery and Initial Observations 05:30 Probability Changes and Data Limitations 07:25 Public Interest and Planetary Defense 10:35 Kinetic Impactor Defense and Future Missions Here's to building a fantastic future - and continued progress in Space (and humanity)!  Spread Love, Spread Science  Alex G. Orphanos  We'd like to thank our sponsors:  AG3D Printing  Follow us: @todayinspacepod on Instagram/Twitter @todayinspace on TikTok /TodayInSpacePodcast on Facebook  Support the podcast: • Buy a 3D printed gift from our shop - ag3dprinting.etsy.com • Get a free quote on your next 3D printing project at ag3d-printing.com • Donate at todayinspace.net #spacecraft #technology #aerospace #spacetechnology #engineer #stem #artemis #astronaut #spacewalk #crewdragon #falcon9 #elonmusk #starship #superheavybooster #blueorigin #newglenn #rocket #jaredisaacman #nasahistory #spaceshuttle #lignosat #woodinspace #iamgroot #jaxa Sources: Chris Hadfield's thoughts on the Asteroid https://www.instagram.com/reel/DGI-_CNugG7/?igsh=emkwNTA5cnp2emc1 blogs.nasa.gov https://cneos.jpl.nasa.gov/news/news210.html https://science.nasa.gov/solar-system/asteroids/2024-yr4/ https://nypost.com/2025/02/17/science/see-images-of-the-city-killer-asteroid-with-a-1-in-48-chance-of-hitting-earth/ http://dashboard.fallingstar.com/dash/chl.html https://arstechnica.com/space/2025/02/the-odds-of-a-city-killer-asteroid-impact-in-2032-keep-rising-should-we-be-worried/ https://www.newscientist.com/article/2466186-building-sized-asteroid-has-a-small-chance-of-hitting-earth-in-2032/ X Posts @MarioNawfal (Post ID: 1) - January 29, 2025: Reports a 1-in-83 chance, aligning with early estimates. URL: https://t.co/ftZVwBWb8e @JustinFleenor (Post ID: 5) - February 18, 2025: Lists a 3.1% chance (1-in-32), with observation arc and scales. URL: https://t.co/NP1WxR6FHF @JustinFleenor (Post ID: 3) - February 19, 2025: Updates to 1.5% chance (1-in-67), reflecting the latest drop. URL: https://t.co/BPQTtZYpM5 @astroEdLu (Post ID: 0) - February 7, 2025: Mentions a 2.3% chance with impact location modeling by B612 Foundation. URL: https://t.co/DP21bMeIdT  

Clarence Ford speaks to Barbara Friedman, Digital Content Editor of Primedia+ about trending online stories.See omnystudio.com/listener for privacy information.

We're experimenting and would love to hear from you!In today's episode of 'Discover Daily', we begin with January's unexpected inflation surge to 3% that has rattled financial markets and diminished hopes for early Fed rate cuts. The Consumer Price Index showed significant increases across multiple sectors, with egg prices jumping 15.2% in a single month due to ongoing avian flu outbreaks. These developments have triggered widespread market adjustments and raised concerns about persistent inflation pressures.The tech world continues to watch the escalating battle between Elon Musk and OpenAI, with Musk offering to withdraw his $97.4 billion bid for OpenAI's nonprofit arm if the company halts its for-profit transition. This latest development adds another layer to the complex relationship between the Tesla CEO and the AI company he co-founded, highlighting the ongoing debate about artificial intelligence's future direction.In our final segment, we explore China's groundbreaking entry into planetary defense with their newly announced asteroid monitoring and deflection program. Led by the National Space Science Center, this initiative includes a sophisticated dual-spacecraft mission planned for 2027, targeting asteroid 2015 XF261. The mission represents China's first attempt to alter an asteroid's trajectory using both observation and impact techniques.From Perplexity's Discover Feed:https://www.perplexity.ai/page/inflation-rises-unexpectedly-Cd_AyeSHSLahWzYkxxAZeg https://www.perplexity.ai/page/musk-to-withdraw-bid-if-openai-z5zXTCfGSMac79T.IzlL5w https://www.perplexity.ai/page/china-establishes-planetary-de-V8DlCMkoREiyu6AEMVOHRwPerplexity is the fastest and most powerful way to search the web. Perplexity crawls the web and curates the most relevant and up-to-date sources (from academic papers to Reddit threads) to create the perfect response to any question or topic you're interested in. Take the world's knowledge with you anywhere. Available on iOS and Android Join our growing Discord community for the latest updates and exclusive content. Follow us on: Instagram Threads X (Twitter) YouTube Linkedin

Astronomy Daily - The Podcast: S04E38In this episode of Astronomy Daily, host Anna takes you on an exhilarating journey through the latest advancements in space exploration and astronomy. From planetary defense initiatives to groundbreaking discoveries, this episode is filled with insights that will captivate your cosmic curiosity.Highlights:- China's Planetary Defense Initiative: Learn about China's newly established planetary defense team in response to the potential threat posed by asteroid 2024 YR4, which has a 2.2% chance of impacting Earth in 2032. Discover their innovative strategies, including a kinetic impact approach inspired by NASA's DART mission.- James Webb Space Telescope's Discoveries: Explore the stunning new images from the James Webb Space Telescope revealing the formation of planets around a distant star, providing insights into the early stages of planetary development and the dynamics of circumplanetary disks.- Vast Space's Haven 1 Space Station: Delve into Vast Space's ambitious plans for the Haven 1 space station, which is set to launch in 2026. Find out how this project could pave the way for future private space stations and ensure continuous human presence in low Earth orbit.- Record-Breaking Cosmic Neutrino: Uncover the details of the most powerful cosmic neutrino ever detected, observed by the KM3NeT telescope. This remarkable discovery opens new avenues for understanding high-energy cosmic phenomena and the universe's most enigmatic processes.- Nancy Grace Roman Space Telescope Update: Get the latest on NASA's Roman Space Telescope project, which has successfully integrated its deployable aperture cover, marking a significant milestone as it prepares for its launch scheduled for 2027.- Innovative Lunar Habitat Concept: Discover an exciting new design for lunar habitats made from blown glass, a concept that could revolutionize living spaces on the Moon and beyond, utilizing materials sourced from the lunar surface.For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, and TikTok. Don't forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.Thank you for tuning in. This is Anna signing off. Until next time, keep looking up and stay curious about the wonders of our universe.00:00 - Welcome back to Astronomy Daily01:02 - China's Planetary Defense Initiative05:30 - James Webb's planetary formation images10:15 - Vast Space's Haven 1 space station progress14:00 - Discovery of record-breaking cosmic neutrino18:20 - Nancy Grace Roman Space Telescope update22:00 - Innovative lunar habitat concept25:00 - Conclusion and upcoming content✍️ Episode ReferencesChina's Planetary Defense Initiative[Planetary Defense](https://www.china-space.com)James Webb Space Telescope Discoveries[James Webb](https://www.nasa.gov/webb)Vast Space Haven 1 Project[Vast Space](https://www.vastspace.com)Record-Breaking Neutrino Detection[KM3NeT](https://www.km3net.org)Nancy Grace Roman Space Telescope Updates[Roman Space Telescope](https://www.nasa.gov/roman)Innovative Lunar Habitat Concept[Lunar Habitat](https://www.nasa.gov/lunarhabitat)Astronomy Daily[Astronomy Daily](http://www.astronomydaily.io)Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-space-news-discoveries--5648921/support.

President Trump and President Putin respectively announced today that both leaders have been having conversations about ending the war in Ukraine. I'll have more in several minutes. However, our first news feature today is from China where a governmental planetary defense team has been formed to prepare for the arrival of an asteroid in late December 2032.Rick Wiles, Doc Burkhart. Airdate 02/12/2025Join the leading community for Conservative Christians! https://www.FaithandValues.comYou can partner with us by visiting TruNews.com, calling 1-800-576-2116, or by mail at PO Box 399 Vero Beach, FL 32961.Get high-quality emergency preparedness food today from American Reserves!https://www.AmericanReserves.com             It's the Final Day! The day Jesus Christ bursts into our dimension of time, space, and matter. Now available in eBook and audio formats! Order Final Day from Amazon today!https://www.amazon.com/Final-Day-Characteristics-Second-Coming/dp/0578260816/Apple users, you can download the audio version on Apple Books!https://books.apple.com/us/audiobook/final-day-10-characteristics-of-the-second-coming/id1687129858Purchase the 4-part DVD set or start streaming Sacrificing Liberty today.https://www.sacrificingliberty.com/watchThe Fauci Elf is a hilarious gift guaranteed to make your friends laugh! Order yours today!https://tru.news/faucielf

This week we talk about DART, extinction events, and asteroid 2024 YR4.We also discuss Bruce Willis, Theia, and the Moon.Recommended Book: Exadelic by Jon EvansTranscriptIn the 1998 action flick Armageddon, an asteroid the size of Texas is nudged into a collision course with earth by a comet, and NASA only notices it 18 days before impact.The agency recruits a veteran oil driller, played by Bruce Willis, to fly out to the asteroid and drill a hole in it, and to detonate a nuke in that hole, which should destroy it before it hits earth, which undetonated, that rock not broken up ahead of time, would wipe out everything on the planet. It's a fun late-90s flick loaded with some of the biggest names of the era, so I won't ruin it for you if you haven't seen it, but the crux of the plot is that there's a lot going on in space, and at some point there's a chance one of these big rocks hurling around in the void will line up just right with earth's orbit, and that rock—because of how fast things move in space—would hit with enough force to wipe out a whole lot of living things; perhaps all living things.This film's concept was predicated on historical events. Not the oilmen placing a nuke on a rogue asteroid, but the idea of an asteroid hitting earth and killing off pretty much everything.One theory as to how we got our Moon is that an object the size of Mars, called Theia, collided with Earth around 4.5 billion years ago. That collision, according to some versions of the so-called “giant impact hypothesis,” anyway, could have brought earth much of its water, as the constituent materials required for both water and carbon based life were seemingly most prevalent in the outer solar system back in those days, so this object would have slammed into early earth, created a disk of debris that combined that early earth's materials with outer solar system materials, and that disk would have then reformed into a larger body, earth, and a smaller body, the moon.In far more recent history, though still unthinkably ancient by the measure of a human lifespan, an asteroid thought to be somewhere between 6 and 9 miles, which is about 10 to 15 km in diameter hit off the coast of what is today Mexico, along the Yucatan Peninsula, killing about 70% of all species on earth.This is called the Chicxulub Event, and it's believed to be what killed the dinosaurs and all their peer species during that period, making way for, among other things, early mammals, and thus, eventually, humans.So that was an asteroid that, on the low end, was about as wide as Los Angeles. You can see why those in charge back in the 90s tapped Bruce Willis to help them handle an asteroid the size of Texas.Thankfully, most asteroid impacts aren't as substantial, though they can still cause a lot of damage.What's important to remember is that because these things are moving so fast, even though part of their material will be burnt up in the atmosphere, and even though they might not all be Texas-sized, they generate an absolutely boggling amount of energy upon impact.The exact amount of energy will vary based on all sorts of things, including the composition of the asteroid , the angle at which it hits, and where it hits; an oceanic impact will result in a whole lot of that energy just vaporizing water, for instance, while a land impact, which is less common because a little more than 70% of the planet is water, will result in more seismic consequences.That said, an asteroid that's about 100 meters in diameter, so about 328 feet, which is a lot smaller than the aforementioned 6 to 9 mile asteroid—a 100 meter, 328 foot object hitting earth can result in a force equivalent to tens of megatons of TNT, each megaton equaling a million tons, and for comparison, the atomic bombs dropped on Hiroshima and Nagasaki at the end of WWII ranged from 15,000 to 21,000 tons of TNT, mere kilotons. So a 100 meter, 328 foot asteroid hitting earth could generate somewhere between a few hundred thousand and a few million atomic bombs' worth of energy.None of which would be particularly devastating on a planetary scale, in the sense that the ground beneath out feet would barely register such an impact. But the thin layer of habitable surface where most or all of the world's life exists, certainly does. And that's the other issue here, is that on top of even a relatively small asteroid being a city-killer, wiping out everyone and everything in a large area around where it strikes, it can also cause longer-term devastation by hurling a bunch of water and soil and detritus and dust and ash into the atmosphere, acting as a cloak around the planet, messing with agriculture, messing with growth patterns and other cycles for plants and animals; the water and heat cycles completely thrown off. All of which can cause other knock-on effects, like more severe storms in unusual places, periods of famine, and even conflict over scarcer resources.What I'd like to talk about today is a recently discovered asteroid that is being called a potential city-killer, and which is raising alarms in the planetary defense world because of its relatively high likelihood of hitting earth in 2032.—Asteroid 2024 YR4 is thought to be around 130-300 feet, which is about 40-90m in diameter, and it has what's called an Earth-crossing, or Apollo-type orbit. Asteroids with this type of orbit won't necessarily ever intersect with earth, and some are incredibly unlikely to ever do so. But some relatively few of them, that we're aware of, anyway, have orbits that periodically get really close to earth's, to the point that even a small tweak to their orbit, caused by gravitational perturbances or maybe being nudged by something else in space, could put them on course to cause a lot of damage.Global astronomical bodies keep tabs on these sorts of asteroids, and they keep an especially close eye on what are called PHAs, or potentially hazardous asteroids, because they are objects that are close-ish to Earth, are in orbits that could bring them even closer, perhaps even on an intersection path with earth at some point, and they have an absolute magnitude of 22 or brighter, which means they're big enough to be fairly visible to our instruments, and that generally means they'll be 500 feet or around 140m in diameter or larger, which puts them in the “will cause severe damage if it hits earth” category.That latter component of the definition is important, as while the Chelyabinsk meteor that blew up in what's called an air burst over southwestern Russia in 2013 caused a lot of damage—generating about 400-500 kilotonnes of TNT worth of energy, about 30-times the energy released by the atomic bomb that blew up Hiroshima, resulting in a shock wave that injured nearly 1,500 people sufficiently that they had to seek medical attention, alongside all the broken glass and thousands of damaged buildings caused by that shockwave (which in turn caused those injuries)—that meteor is considered to be pretty tame compared to what we would expect from a larger impact. It was only about 60 feet, around 18m in diameter.That's part of why asteroid 2024 YR4 is getting so much attention; it's more than twice, maybe as much as five times that large, and current orbital models suggest that on December 22, 2032, it has a small chance of hitting earth.Small is a relative term here, though, both in the sense that the exact likelihood figure keeps changing, and will continue to do so as we're able to capture more data leading up to that near-future deadline, and in the sense that even very small possibilities that a city-killer asteroid will hit earth is something that we should arguably be worried about, out of proportion to the smallness of the statistical likelihood.If you are told there's a 1% chance you'll die today, that means there's a 99% chance you won't, but that 1% chance is still really substantial in the context of living or not living.Similarly, a 1% chance of a large asteroid impacting earth is considered to be substantial because that means a 1% chance that a city could be completely wiped out, along with all the maybe millions of people living in it, all the plants an animals in the region, too, and we could see all those aforementioned weather effects, atmospheric issues, and so on, for a long time into the future.At the moment, as of the day I'm recording this, there's a 2.2% chance this asteroid will hit earth on that day, December 22, 2032. Its likely impact zone, if it were to hit, stretches roughly along the equator, from just south of Mexico, across upper south america and the middle of africa, over to eastern India. If it's on the larger side of current estimates, it's possible that its blast could stretch for 31 miles in all directions from where it hits, because it's a hard object the size of a large building traveling at around 38,000 miles per hour.So just shy of 7 years, 11 months from now, which is around 2,870 days, that thing could plow into a span of earth that contains quite a few major cities—but it could also hit a stretch of ocean, causing a separate set of problems, ranging from tsunamis to borked weather patterns and loads of sun-concealing, globe-spanning cloud cover.Again, though, the numbers here are weird because of the things they're describing. Nearly 8 years is a long time in many ways, but if you're staring down the barrel of a potentially city-killing asteroid, that begins to feel like not long at all; Bruce Willis only had 18 days, but he also lived in the world of Hollywood fantasy. In real life, spinning up that kind of mission takes a lot longer, and that's after you settle on who's going to pay for some kind of asteroid killing or deflecting program, how it's going to work, and so on.Fortunately for everyone involved, back in late-2022, NASA launched a project called the Double Asteroid Redirection Test, or DART, which entailed launching a spacecraft that rendezvoused with pair of asteroids with a known trajectory. That spacecraft shot an impacter, basically a little space bullet, at one of the asteroids, which allowed the craft, along with a supplementary satellite, to collect all sorts of data about what happened to the asteroid after it was hit.The hope was that using this method, launching a craft that shoots space bullets at asteroids, we would be able to reduce the target asteroid's orbit by 73 seconds, which is an orbital measurement. Instead, it shortened it by 32 minutes, which is way, way more, and generally considered to be a huge success beyond what the mission planners could have hoped for.Not all of what was learned from the DART mission will be transferable to other possible missions, because asteroids have different compositions, have different spins and speeds, and some will be easier to hit than others, and to hit in a way that would move them beneficially: we want to move them away from a path that lines up with earth's orbit, not in such a way that a strike becomes more likely.But this success suggests that it may be possible to basically nudge asteroids away from a collision trajectory with our planet, rather than having to blow the things up with nukes, which would be a far more involved and dangerous undertaking.We've also seen the costs associated with space launches drop dramatically over the past ten years, to the point where launching this sort of mission will cost a fraction of what it would have cost back in the 90s, which is fortunate, as historically governments have shown less enthusiasm for firing space bullets than for firing bullets planet-side, so if worse comes to worse, there's a chance even a beneficent billionaire, maybe even a millionaire, could fund such a project in a pinch.At the moment, it's still overwhelmingly likely that asteroid 2024 YR4 will miss earth in 2032. A 2.2% chance of an impact is worrying, and we'll hopefully start building the infrastructure we need to deflect such objects sooner rather than later, as even if we don't end up using said craft this time around, it seems prudent to have those sorts of missions ready to go at a moment's notice, should we someday find ourselves in an Armageddon situation, with only a few weeks before something really, really bad happens.That said, even with today's quite high likelihood, that still means there's a 97.8% chance it won't be anything to worry about. We should know a fair bit more by April of this year, after which point this asteroid will be really far away and thus trickier to see until 2028, when it loops back in our direction.There would still be time to do something about it then, if warranted, but more time is typically better with this sort of thing—again, because we want to be sure any deflection attempt is successfully launched, but also that it deflects it away from us, not toward us. And our best bet to deflect would be during that 2028 close flyby, so it's likely by April, or just after that, we'll have some kind of decision by the folks in charge about whether to launch a deflection mission in 2028 or thereabouts.All of which would be historic, but would also probably be a good idea and a worthwhile investment, wherever this specific asteroid's path ends up taking it. As our space neighborhood is rich with these sorts of rocks and other astronomical bodies, and because, as our in-space sensory assets have become more numerous and sophisticated, we've been able to see just how lucky we are, that we haven't had more horrible impacts, so far; there's a lot of stuff flying around out there, and the moon probably helps by taking some of those bullets for us, but even with that extra layer of natural protection, we might want to play a more active role in managing our orbital neighborhood, soon, as it would be really embarrassing to have all this knowledge and these capacities, but to not be able to use them when we need them because we failed to plan ahead.Show Noteshttps://en.wikipedia.org/wiki/List_of_Earth-crossing_asteroidshttps://cneos.jpl.nasa.gov/about/neo_groups.htmlhttps://en.wikipedia.org/wiki/Chelyabinsk_meteorhttps://x.com/Astro_Jonny/status/1886742128199336362https://en.wikipedia.org/wiki/2024_YR4https://www.nytimes.com/2025/02/08/science/asteroid-yr4-2024-impact-odds.htmlhttps://www.usatoday.com/story/news/nation/2025/02/08/asteroid-hitting-earth-2032-nasa/78322607007/https://en.wikipedia.org/wiki/99942_Apophishttps://science.nasa.gov/solar-system/asteroids/2024-yr4/https://www.cbsnews.com/news/asteroid-2024-yr4-chance-hit-earth-what-to-know/https://blogs.nasa.gov/planetarydefense/2025/02/07/nasa-continues-to-monitor-orbit-of-near-earth-asteroid-2024-yr4/https://www.nasa.gov/news-release/nasa-confirms-dart-mission-impact-changed-asteroids-motion-in-space/https://en.wikipedia.org/wiki/Double_Asteroid_Redirection_Testhttps://science.nasa.gov/mission/dart/https://www.space.com/nasa-dart-mission-dimorphos-didymos-asteroid-impact-reshapinghttps://www.cnn.com/2024/02/27/world/nasa-dart-dimorphos-impact-scn/index.htmlhttps://en.wikipedia.org/wiki/AIDA_(international_space_cooperation)https://www.planetary.org/notable-asteroid-impacts-in-earths-historyhttps://en.wikipedia.org/wiki/Origin_of_water_on_Earthhttps://en.wikipedia.org/wiki/Theia_(planet)https://science.nasa.gov/earth/deep-impact-and-the-mass-extinction-of-species-65-million-years-ago/https://en.wikipedia.org/wiki/Chicxulub_craterhttps://www.lpi.usra.edu/publications/books/barringer_crater_guidebook/chapter_11.pdfhttps://en.wikipedia.org/wiki/Armageddon_(1998_film)https://www.history.com/news/7-major-asteroids-strikes-in-earths-historyhttps://en.wikipedia.org/wiki/Impact_eventhttps://world-nuclear.org/information-library/safety-and-security/non-proliferation/hiroshima-nagasaki-and-subsequent-weapons-testinhttps://www.astronomy.com/science/earths-greatest-hits-a-history-of-asteroid-impacts/ This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit letsknowthings.substack.com/subscribe

Geoff Clayton is the Interim Director of Astronomy at the Maria Mitchell Association. This week Geoff talks about how the Earth needs to prepare to avoid a collision with an asteroid.

Imagine that scene from every apocalyptic asteroid movie—you know the one. The scientist comes rushing in because a "new" asteroid has been detected and is on a collision course with Earth. What happens next? The answer depends on several factors: how big is the asteroid, what is it made of, and how soon is the impact? (That's simplified but roll with it.) NASA's DART mission showed that an impactor can change the orbit of an asteroid, but that tested the hypothesis on the tiny moon of a small asteroid. What if the asteroid is much larger? Scientists at Sandia National Laboratories in New Mexico may have an answer -- a controlled nuclear blast that deflects (rather than destroys) the asteroid. Join planetary scientist Beth Johnson and lead author Nathan Moore for an exciting—and probably terrifying—conversation about how to keep our advanced civilization alive. (Recorded live 5 December 2024.)

OSIRIS-REx and the Hayabusa spacecraft have sample asteroids to understand what they're made of. NASA sent the DART mission to change the orbit of a tiny asteroid orbiting another asteroid. ESA sent Hera as a follow-up mission to see what the impactor did. All of these missions have been done in the name of planetary defense -- protecting Earth from the worst of the rocks in space. While none of the asteroids so far discovered are a threat to our planet in the next century, there are still more out there that are small enough to do major damage to a city or even country. So what do we do if we find a near-Earth asteroid that's a real threat? Launch a team a la "Armageddon"? Ignore the problem? Try to flee off-planet or below ground? As DART showed, the best answer seems to be "move it out of the way". In his new book "How to Kill an Asteroid", Dr. Robin George Andrews tells the story of planetary defense and how we got to this point in saving ourselves. Join communications specialist Beth Johnson in a fun (and slightly scary) conversation with Dr. Andrews about killer asteroids this Halloween on SETI Live. (Recorded 31 October 2024.)

Ever wondered how NASA monitors asteroids? In our latest episode, we go behind the scenes with Dr. Kelly Fast, NASA's acting planetary defense officer, to discuss efforts to detect, track, and mitigate threats from near-Earth objects, or NEOs. From asteroid early warning systems to a new spacecraft that will find and track NEOs, learn how NASA's Planetary Defense Coordination Office is at the forefront of keeping Earth safe from cosmic hazards.

Randall Carlson, a master of ancient mysteries, joins Patrick Bet-David for an eye-opening discussion on the past and future of humanity. Carlson sheds light on suppressed knowledge from Freemasonry, the threat of mass extinction events, and cataclysmic climate shifts that have shaped the Earth's history. From the mysteries of Atlantis to the planetary defense strategies we need today, Carlson offers a fresh, provocative perspective that challenges mainstream science and history. ------

Welcome to Astronomy Daily, the podcast where we bring you the latest space and Astronomy news. I'm your host, Anna. Today we have an exciting lineup of stories that you won't want to miss. We're starting off with the launch of ESA's new PICSAT-2 satellite, which aims to revolutionize Earth observation through the power of artificial intelligence. Next, we'll dive into NASA's DART mission, which not only managed to deflect an asteroid but also offered invaluable insights into planetary defense strategies. We'll also explore how astronomers are making strides in predicting the feeding times of black holes. Yes, you heard that right. The cosmic voids have dinner schedules. Finally, we'll delve into a fascinating study that uncovers Earth's rotational history, revealing a pattern that has implications for major environmental events across millions of years. So sit back, relax, and get ready to journey through the cosmos with us.- **ESA's PICSAT-2 Satellite Revolutionizes Earth Observation**: ESA's PICSAT-2 satellite has officially launched, marking a revolutionary advancement in Earth observation through artificial intelligence. - **NASA's DART Mission: A Breakthrough in Planetary Defense**: NASA's Double Asteroid Redirection Test, or DART, mission, has made a significant splash in planetary defense by successfully demonstrating the ability to deflect an asteroid. The mission involved sending a spacecraft to collide deliberately with the moonlet Dimorphos, which is part of the binary asteroid system Didymos. - **Predicting Black Hole Feeding Times**: Astronomers have made an impressive leap in our understanding of black holes by successfully predicting the meal times of a colossal black hole. This prediction came after observing the black hole's consumption of a nearby star in bits and pieces. The initial data was captured in 2018, when a surge of brightness was detected from a galaxy about 860 million light-years away. - **Uncovering Earth's Rotational History**: A recent study has uncovered intriguing details about the Earth's rotational history, revealing a staircase pattern of deceleration interspersed with periods of stability. By analyzing sediment samples dating back a staggering 650 million years, researchers have pieced together how our planet's spin has changed over the eons. For more Astronomy Daily, including our continually updating newsfeed, visit our website at astronomydaily.io. Follow us on social media at AstroDailyPod on Facebook, X, YouTubeMusic, and TikTok. We love engaging with our community, so be sure to drop us a message or comment on your favorite platform.For more Space and Astronomy News Podcasts, visit our HQ at www.bitesz.com.Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-podcast--5648921/support.

What would we do if a life-destroying asteroid was coming our way? Bill Nye and comedian Chuck Nice answer questions about planetary defense, asteroids in space, and sci-fi technology.NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here:https://startalkmedia.com/show/planetary-defense-bill-nye/(Originally Aired May 23, 2017)

The Roads to Planetary Defense, Asteroids, and NASA --- Send in a voice message: https://podcasters.spotify.com/pod/show/beau-of-the-fifth-column/message Support this podcast: https://podcasters.spotify.com/pod/show/beau-of-the-fifth-column/support

Every year on June 30, the space community observes Asteroid Day, the anniversary of the Tunguska blast. Markus Payer, Asteroid Foundation Chair, joins us to talk about this year's Asteroid Day festivities. We also get an update on the results of the Double Asteroid Redirection Test (DART) with Terik Daly, a planetary scientist and the Planetary Impact Laboratory manager at Johns Hopkins Applied Physics Lab. He'll tell us more about the aftermath of DART's smashing encounter with asteroid Dimorphos. Then Bruce Betts, our chief scientist, discusses what The Planetary Society's asteroid-hunting grant winners have been up and in What's Up. Discover more at: https://www.planetary.org/planetary-radio/2024-asteroid-bash-smashSee omnystudio.com/listener for privacy information.

In a collaboration between the Asteroid Institute and Google Cloud, machine learning algorithms identified 27,500 new asteroids using existing data sets from the NOIRLab Source Catalog Data Release 2 (NSC DR2). While most of the asteroids are in the main belt between Mars and Jupiter, more than 100 are considered Near-Earth Asteroids. Developed by the Asteroid Institute, the algorithm is called Tracklet-less Heliocentric Orbit Recovery (THOR), and it "projects theoretical orbits across millions of observed moving points of light and links together those points that are consistent with real physical orbits". Join communications specialist Beth Johnson in a conversation with Ed Lu, Executive Director of the Asteroid Institute, as they discuss these results and how they affect our planetary defense outlook. (Recorded live 6 June 2024.)

*Pastor Kevin Lea: RSR hosts Fred Williams & Doug McBurney welcome Pastor Kevin Lea of Calvary Church Port Orchard WA to discuss NASA's BIG mistake, and the latest news from earth and space in light of Hydroplate Theory! * Shot in the DART: Hear the details regarding the DART mission and its impact on the asteroid Dimorphos, providing further evidence for the Hydroplate Theory of the origin of asteroids. * The Best Defense: We discuss how understanding the make-up of asteroids and comets should guide research on planetary defense against impacts. *Biblical Buckshot: The Biblical descriptions of meteoroid/asteroid impacts at Sodom & in Revelation match what was observed with Shoemaker Levy 9, and what would happen if a rockpile, (and not a single rock) was pulled down by earth's gravity. *Lucy and Dinky: NASA's next probe Lucy is on its way to study 11 more asteroids, and has already shocked the world with the contact binary of Dinkenesh! (Not shocking by the HPT paradigm though)...

*Pastor Kevin Lea: RSR hosts Fred Williams & Doug McBurney welcome Pastor Kevin Lea of Calvary Church Port Orchard WA to discuss NASA's BIG mistake, and the latest news from earth and space in light of Hydroplate Theory! * Shot in the DART: Hear the details regarding the DART mission and its impact on the asteroid Dimorphos, providing further evidence for the Hydroplate Theory of the origin of asteroids. * The Best Defense: We discuss how understanding the make-up of asteroids and comets should guide research on planetary defense against impacts. *Biblical Buckshot: The Biblical descriptions of meteoroid/asteroid impacts at Sodom & in Revelation match what was observed with Shoemaker Levy 9, and what would happen if a rockpile, (and not a single rock) was pulled down by earth's gravity. *Lucy and Dinky: NASA's next probe Lucy is on its way to study 11 more asteroids, and has already shocked the world with the contact binary of Dinkenesh! (Not shocking by the HPT paradigm though)...

After NASA's OSIRIS-REx spacecraft's successful sample retrieval from asteroid Bennu, it's onto its next adventure as OSIRIS-APEX, the Apophis Explorer. Scott Guzewich, deputy project scientist for APEX, joins Planetary Radio to discuss the next steps for the mission as we count down to asteroid Apophis' flyby of Earth in 2029. Then Bruce Betts, The Planetary Society's chief scientist, pops in for What's Up and a look at other multi-world missions. Discover more at: https://www.planetary.org/planetary-radio/2024-osiris-apex See omnystudio.com/listener for privacy information.

Some people have weather radios, in case severe storms approach. But what should you do to prepare for an asteroid that's coming – perhaps within 24 hours?Advertising Inquiries: https://redcircle.com/brandsPrivacy & Opt-Out: https://redcircle.com/privacy

In this episode Peter Garretson has a discussion with former NASA Administrator Jim Bridenstine. They delve into the strategic importance of space to our economy and security and counter-space threats. They review how Bridenstine got into space via the Rocket Racing League, how his interests in promoting commercial space resulted in his introducing the Space Renaissance Act while in Congress. The two discuss the big ideas for Cislunar contained in his 2016 policy speech, This is Our Sputnik Moment. They cover how he moved ideas from the Google Lunar XPrize to create the NASA CLPS program. They address the creation of Artemis Program goals for a sustainable presence on the Moon and on the progress of Planetary Defense. They discuss the DIME (Diplomatic Informational Military Economic) theory of national power, and the roles that NASA, the commercial sector, and the Space Force play, including the creation of an economic and industrial base to win economic and strategic competition in the space domain. Additionally, they assess the naval-like role for the United States Space Force. They conclude talking about the informational and public diplomacy aspect of spacepower, how PRC initiatives in Lunar infrastructure, space nuclear power, and space solar power satellites and demos, and the need for the US to continue to reach for big audacious projects which impress the world.

WHY THE NEED FOR PLANETARY DEFENSE:: 1/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world.  PLANETARY DISK

WHY THE NEED FOR PLANETARY DEFENSE:: 2/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world.   1999 MARS PATHFINDER

WHY THE NEED FOR PLANETARY DEFENSE:: 3/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world. 2008 MOON BOMBARDMENT  

WHY THE NEED FOR PLANETARY DEFENSE:: 4/4: Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Hardcover – by  Greg Brennecka  (Author) https://www.amazon.com/Impact-Rocks-Space-Culture-Donkey/dp/0063078929/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr= Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth's early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet. While meteorites have provided the raw materials for life to thrive, they have radically devastated life as well, most famously killing off the dinosaurs and paving the way for humans to evolve to where we are today. As noted meteoriticist Greg Brennecka explains, meteorites did not just set us on the path to becoming human, they helped direct the development of human culture. Meteorites have influenced humanity since the start of civilization. Over the centuries, meteorite falls and other cosmic cinema have started (and stopped) wars, terrified millions, and inspired religions throughout the world. 1851 LONDON 

Join us in this episode of Space Cafe as Markus Mooslechner talks with Andy Rivkin about the thrilling DART mission. As its Lead Investigator, Rivkin offers a rare glimpse into the world of planetary defense, sharing the intricate dance between meticulously executed plans and the unpredictable nature of space exploration. From the collision course with Dimorphos to the anticipation of Hera's future findings, Rivkin's narrative is a testament to human ingenuity and our relentless pursuit of cosmic knowledge. 3 Memorable Quotes by Andy Rivkin:1. "The DART mission stands as a testament to our proactive stance on planetary defense, showcasing our readiness to safeguard our planet."2. "Every mission has its heartbeat, its rhythm. With DART, it was about embracing the mission's end as much as its beginning, knowing the impact we hoped to achieve."3. "In the cosmos, we find a reflection of life's unpredictability, where even the most calculated orbits can reveal new paths, new possibilities." List of All Links or Names Shared:• Andy Rivkin: https://shorturl.at/dxyP1• DART – Double Asteroid Redirection Test: official NASA page: https://shorturl.at/fqvMO• ESA's Hera Mission: official ESA page: https://shorturl.at/oGQT5• Planetary Defense Coordination Office: official page: https://shorturl.at/chQYZ• CubeSats Milani and Juventus: mission details: https://shorturl.at/oFH19Choice of Music for the Spotify Playlist for the Aspiring Space Traveler: For the Spotify playlist, Andy Rivkin has chosen:"I Want You (She's So Heavy)" by The Beatles, https://www.youtube.com/watch?v=tAe2Q_LhY8g&ab_channel=TheBeatles-Topica song that echoes the gravitational pull of celestial bodies and the weight of human desire to explore beyond our earthly confines.Rate us and leave a review on Apple Podcasts.

SpaceWatch.Global is pleased to present: The Space Café Podcast #94: Diving into NASA's DART Mission: Lead Investigator Andy Rivkin on the Frontlines of Planetary Defense Episode 094 features special guests: Andy RivkinJoin us in this episode of Space Cafe Podcast as Markus Mooslechner talks with Andy Rivkin about the thrilling DART mission. As its Lead Investigator, Rivkin offers a rare glimpse into the world of planetary defense, sharing the intricate dance between meticulously executed plans and the unpredictable nature of space exploration. From the collision course with Dimorphos to the anticipation of Hera's future findings, Rivkin's narrative is a testament to human ingenuity and our relentless pursuit of cosmic knowledge.3 Memorable Quotes by Andy Rivkin:"The DART mission stands as a testament to our proactive stance on planetary defense, showcasing our readiness to safeguard our planet.""Every mission has its heartbeat, its rhythm. With DART, it was about embracing the mission's end as much as its beginning, knowing the impact we hoped to achieve.""In the cosmos, we find a reflection of life's unpredictability, where even the most calculated orbits can reveal new paths, new possibilities."List of All Links or Names Shared: • DART – Double Asteroid Redirection Test: official NASA page: https://shorturl.at/fqvMO• ESA's Hera Mission: official ESA page: https://shorturl.at/oGQT5• Planetary Defense Coordination Office: official page: https://shorturl.at/chQYZ• CubeSats Milani and Juventus: mission details: https://shorturl.at/oFH19Choice of Music for the Spotify Playlist for the Aspiring Space Traveler: "I Want You (She's So Heavy)" by The Beatles, https://www.youtube.com/watch?v=tAe2Q_LhY8g&ab_channel=TheBeatles-Topic a song that echoes the gravitational pull of celestial bodies and the weight of human desire to explore beyond our earthly confines. 

#Bestof2022: 2/2   #HotelMars: Planetary Defense, September 2022.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  https://www.nasa.gov/planetarydefense/dart 1811 Greenwich

#Bestof2022: 1/2   #HotelMars: Planetary Defense, September 2022.  Andy 1879 HerscelRivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  https://www.nasa.gov/planetarydefense/dart 1879

THE DAY OF THE NEXT DINOSAUR KILLER: 2/2: #Bestof2021:   #HotelMars: Planetary Defense, September 2022.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted December 3, 2021) https://www.nasa.gov/planetarydefense/dart 1882

THE DAY OF THE NEXT DINOSAUR KILLER: 1/2: #Bestof2021:   #HotelMars: Planetary Defense, September 2022.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted December 3, 2021) https://www.nasa.gov/planetarydefense/dart 1834

In this episode Peter Garretson speaks with Simon “Pete” Worden (Brig Gen, USAF, Ret, PhD), Chairman of the Breakthrough Prize Foundation. They discuss the purpose of spacefaring, the importance of Cislunar, the Moon, Clementine, the Near-Earth and Main-Belt Asteroids, NASA's Artemis mission, Moon-to-Mars Objectives and Artemis Accords, DARPA (and it's NOM4D, DRACO, B-SURE and LunA-10 effort), "Bluewater Spacepower," movement & maneuver in deep space, the need to protect commerce, and the U.S. Space Force, 'War Prevention' vs Warfighting'. They explore dissuasion, deterrence, the recent Fractional Orbital Bombardment Test, SDI and Space-Based Missile defense. They delve into how Breakthrough is going after the big questions of is there life, is there intelligent life, and can we reach other star systems through Breakthrough Watch, Breakthrough Listen, Breakthrough Starshot (including its StarChips, Solar Sails and Gigawatt Lasers). They assess the importance of asteroids to science, as a resource, and as a threat, discussing his role in starting Luxembourg Space Agency's Space Resources program for Asteroid Mining, his long-standing role in planetary defense, what became DART. They close discussing Boyd's OODA Loop and philosophy of officership, and the attitude it takes to do innovation.

This episode is brought to you with the support of NordVPN. To get our exclusive deal (including free extra months service) with www.nordvpn.com/stuartgary and help support the show.SpaceTime Series 26 Episode 102 *New study finds Mars is spinning faster than thought A new study undertaking the most precise measurements ever of the red planet's rotation have found that Mars is spinning faster than previously thought. *Maisie's galaxy is among earliest ever observed Astronomers searching the heavens for some of the earliest galaxies ever seen have now confirmed that a galaxy first detected last year is in fact among the earliest ever found. *Getting ready to fly the HERA planetary defense mission The smallest radar to fly in space has been delivered to the European Space Agency for integration aboard the Juventas spacecraft which will form part of the upcoming HERA planetary defense mission. *The Science Report Autism linked to a higher risk of suicide and self-harm. Scientists see a pause in recent coral recovery on much of Great Barrier Reef. The number of daily steps needed to start seeing health benefits is lower than we thought, Skeptics guide the latest psychic scams Listen to SpaceTime on your favorite podcast app with our universal listen link: https://spacetimewithstuartgary.com/listen and access show links via https://linktr.ee/biteszHQ Your support is needed... **Support SpaceTime with Stuart Gary: Be Part of Our Cosmic Journey!** SpaceTime is fueled by passion, not big corporations or grants. We're on a mission to become 100% listener-supported, allowing us to focus solely on bringing you riveting space stories without the interruption of ads.

Photo: No known restrictions on publication. @Batchelorshow 1919 1/2: #Bestof2021:  The Expectation of Planetary Defense.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted December 3, 2021) https://www.nasa.gov/planetarydefense/dart

Photo: No known restrictions on publication. @Batchelorshow August 1917 Petersburg 2/2: #Bestof2021:  The Expectation of Planetary Defense.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted December 3, 2021) https://www.nasa.gov/planetarydefense/dart

Photo: No known restrictions on publication. @Batchelorshow #Bestof2022: 1/2   #HotelMars: Planetary Defense,.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted August 22, 2022) https://www.nasa.gov/planetarydefense/dart Update Description

Photo: No known restrictions on publication. @Batchelorshow #Bestof2022: 2/2   #HotelMars: Planetary Defense,  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted August 22, 2022) https://www.nasa.gov/planetarydefense/dart Update Description

Photo: No known restrictions on publication. @Batchelorshow 1/2: #Bestof2021:   The continuing story of what if? #HotelMars: Planetary Defense, September 2022.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted December 3, 2021) https://www.nasa.gov/planetarydefense/dart

Photo: No known restrictions on publication. @Batchelorshow 2/2: #Bestof2021:   The continuing story of what if? #HotelMars: Planetary Defense, September 2022.  Andy Rivkin  @asrivkin,  planetary astronomer on #TeamAsteroid,  @JHUAPL.  David Livingston @SpaceShow SpaceShow.com  (Originally posted December 3, 2021) https://www.nasa.gov/planetarydefense/dart

Photo: No known restrictions on publication. 1998 main asteroid belt @Batchelorshow #Bestof2021: PRC planetary defense looks the same as PRC anti-satellite offense: PRC Planetary Defense.   Rick Fisher, International Assessment Center.@GordonGChang, Gatestone, Newsweek, The Hill (Originally posted December 21, 2021) https://www.theepochtimes.com/gathering-planetary-defense-race-with-china_4122829.html Rick Fisher, senior Fellow of the International Assessment and Strategy Center

The success of the Double Asteroid Redirection Test was just one more step toward protecting our world from wayward asteroids and comets. NASA Planetary Defense Officer Lindley Johnson, and Kelly Fast, the agency's near-Earth object observation program manager, return to our show for a discussion of where we go from here. Sarah Al-Ahmed will tell us about an article that locates the water on and under Mars, while Bruce Betts gets us ready to enjoy the upcoming total lunar eclipse. There's more to discover at https://www.planetary.org/planetary-radio/2022-johnson-and-fast-pdcoSee omnystudio.com/listener for privacy information.

Ep 225 - Kicking Asteroid: Are We Ready to Defend the Planet?  Invaders from space are touching down on Earth all the time, but how are we going to deal with The Big One? Planetary Defense expert Ralph Harvey breaks down how we can break down dangerous meteors - with or without Bruce Willis. And speaking of burning questions - you want to know more about us, and we're finally ready to talk. It's Mailbag! Insider Edition. GUEST Professor Ralph Harvey Professor of Planetary Sciences at Case Western Reserve University in Cleveland Ohio HOUSE BAND Ellis Montes https://www.youtube.com/c/EllisMontes @ellis.montes on instagram Learn more about your ad choices. Visit megaphone.fm/adchoices

Photo: No known restrictions on publication. @Batchelorshow #HotelMars: #DART: #APL: The next steps in learning  of planetary defense. Nancy Chabot, #JHAPL. David Livingston, DrSpace. SpaceShow.com https://www.msn.com/en-us/news/technology/the-asteroid-nasa-crashed-into-looks-like-a-comet-now-with-a-forked-tail-hubble-image-reveals/ar-AA13cxUm