Podcasts about Oort cloud

Trillions of icy bodies mark the edge of the solar system. They form a shell that extends one or two light-years from the Sun in every direction. A passing star may sometimes give some of them a nudge toward the Sun. When they get here, they become comets – visitors from the icy deep. That distant region is known as the Oort Cloud. It’s named for Dutch astronomer Jan Oort, who was born 125 years ago today. He proposed the existence of the cloud in 1950. And today, that’s his best-known accomplishment. Yet it’s far from his most important work. Early in his career, he confirmed that the Milky Way is a wide, flat, spinning disk. And he showed that, instead of inhabiting the center of the galaxy, the solar system is in the hinterlands – many thousands of light-years outside the heart. Oort spent most of his career at Leiden University in the Netherlands, including decades as director of Leiden Observatory. When Germany invaded the country, though, he left his post instead of working with the Nazis. When he returned, after World War II, he became a pioneer in the new field of radio astronomy. He mapped giant clouds of gas and dust throughout the galaxy. Their distribution provided even more proof of his picture of the Milky Way. Oort continued his research until shortly before his death, in 1992. Scientists have named quite a few things in his honor, including an asteroid – and the icy shell known as the Oort Cloud. Script by Damond Benningfield

The boys discuss summer shoes, what's an Oort Cloud and killing flies

The Solar System is a pretty big place. When most people think of our Solar System, they probably think of the Sun, the planets, and all their moons. However, the solar system is much larger than most people realize. In fact, it is vastly larger than the model they have in their heads. Only in the last few years, with the advent of larger telescopes and better techniques, have we been able to learn more about the outer edge of our Solar System. Learn about the Kuiper Belt, Oort Cloud, and the outer reaches of the solar system on this episode of Everything Everywhere Daily. Sponsors Mint Mobile Cut your wireless bill to 15 bucks a month at mintmobile.com/eed Quince Go to quince.com/daily for 365-day returns, plus free shipping on your order! Stitch Fix Go to stitchfix.com/everywhere to have a stylist help you look your best Tourist Office of Spain Plan your next adventure at Spain.info  Stash Go to get.stash.com/EVERYTHING to see how you can receive $25 towards your first stock purchase and to view important disclosures. Subscribe to the podcast!  https://everything-everywhere.com/everything-everywhere-daily-podcast/ -------------------------------- Executive Producer: Charles Daniel Associate Producers: Austin Oetken & Cameron Kieffer   Become a supporter on Patreon: https://www.patreon.com/everythingeverywhere Update your podcast app at newpodcastapps.com Discord Server: https://discord.gg/UkRUJFh Instagram: https://www.instagram.com/everythingeverywhere/ Facebook Group: https://www.facebook.com/groups/everythingeverywheredaily Twitter: https://twitter.com/everywheretrip Website: https://everything-everywhere.com/  Learn more about your ad choices. Visit megaphone.fm/adchoices

We take a look at the formation and structure of the Oort cloud of comets which is spherical at large distances but has a spiral structure in its inner regions. And, after all this time, there's a surprising twist on the nature of the iron mineral that gives Mars its reddish hue. Also hiding in plain sight is a dwarf galaxy in the neighborhood of the Andromeda galaxy, our largest companion galaxy. Join us for a discussion of these discoveries, trivia, space news and more.

A massive new release of Type 1a supernova data, did astronomers see a strange star form? huge spiral arms of comets in the Oort Cloud, and the highest energy neutrino ever detected. Plus in our extended version on Patreon, how scientists could get real data on UAPs.

A massive new release of Type 1a supernova data, did astronomers see a strange star form? huge spiral arms of comets in the Oort Cloud, and the highest energy neutrino ever detected. Plus in our extended version on Patreon, how scientists could get real data on UAPs.

Laymen may not know it, but trained astronomers, though absolutely certain it MUST exist, acknowledge the origin of comets is still a "mystery."  We discuss assumptions adhered to by evolutionists in their attempts to explain things like comets or our water covered planet.

Join Todd and Paul as they finish their conversation about comets with astronomer Bob Hill. Where do these "dirty snowballs" come from? Learn all about the Kuiper Belt and the Oort Cloud in this episode, and find out whether comets testify to the recent origin of the solar system. Join Todd and Paul as they finish their conversation about comets with astronomer Bob Hill. Where do these "dirty snowballs" come from? Learn all about the Kuiper Belt and the Oort Cloud in this episode, and find out whether comets testify to the recent origin of the solar system.  Send questions to podcast@coresci.org Support the podcast by going to https://letstalkcreation.org Join Todd's Patreon at https://www.patreon.com/researchreports  https://coresci.org/connect or https://biblicalcreationtrust.org

Space Nuts Episode 474 Q&A: Cosmic Constellations, Comet Mysteries, and Citizen ScienceJoin Andrew Dunkley and Professor Fred Watson as they explore the wonders of the universe in this Q&A edition of Space Nuts. From the shifting constellations as you journey through Space to the enigmatic nature of comets and the age of the universe, this episode is packed with celestial insights and intriguing questions from our audience.Episode Highlights:- Constellations from Afar: Discover how the constellations we know would appear from different vantage points in Space. How far must you travel before the familiar star patterns become unrecognisable?- Comet Tsuchinshan-ATLAS: Delve into the story of Comet Tsuchinshan-ATLAS, its recent appearance in our skies, and the question of whether it has visited our solar system before. Learn about the signs that indicate a comet's history and its journey from the Oort Cloud.- Age of the Universe: Uncover the methods used to determine the age of the universe, including the role of the Hubble constant and the importance of measuring cosmic distances. How close are we to knowing the exact age?- Citizen Science Opportunities: Explore the world of citizen science and how you can contribute to astronomical discoveries. From asteroid occultations to light curve data, find out how you can be part of the scientific community.For more Space Nuts, including our continually updating newsfeed and to listen to all our episodes, visit our website. Follow us on social media at SpaceNutsPod on facebook, X, YouTube, Tumblr, Instagram, and TikTok. We love engaging with our community, so be sure to drop us a message or comment on your favourite platform.For more Space and Astronomy News Podcasts, visit our HQ at www.bitesz.com.Become a supporter of this podcast: https://www.spacenutspodcast.com/aboutStay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.00:00 - Space Nuts Q and A edition with Professor Fred Watson01:29 - Roger asks how far can you go before constellations start getting disoriented07:45 - Professor Fred and Andrew answer your questions about the Space Nuts podcast09:13 - On the nights I was best able to observe it, it was cloudy10:49 - Could this comet be its first visit into the inner solar system13:47 - How did we measure how old the universe is? Thanks, Fred19:16 - Sandy asks what is the greatest astronomical discovery by a citizen scientist✍️ Episode ReferencesSpace Nuts Podcast[Space Nuts Podcast](https://www.spacenutspodcast.com)New Horizons[New Horizons](https://www.nasa.gov/mission_pages/newhorizons/main/index.html)Zooniverse[Zooniverse](https://www.zooniverse.org)DreamLab App[DreamLab](https://www.vodafone.com.au/about/news-centre/dreamlab)Unistellar[Unistellar](https://unistellaroptics.com)Galaxy Zoo[Galaxy Zoo](https://www.zooniverse.org/projects/zookeeper/galaxy-zoo)Become a supporter of this podcast: https://www.spreaker.com/podcast/space-nuts--2631155/support.

Space Nuts Q&A EditionJoin Andrew Dunkley and Professor Fred Watson in this engaging Q&A episode of Space Nuts, where they tackle fascinating questions from our audience. From the cosmic mysteries of dark matter to the practicalities of Space communication, this episode is filled with intriguing insights and stellar discussions.Episode Highlights:- Dark Matter and the Cosmic Web: Explore how dark matter interacts with the cosmic web and the gravitational forces that shape our universe. Fred Watson Watson unravels the complex relationship between galaxies and dark matter, shedding light on this cosmic conundrum.- Synchronising Spacecraft Communication: Discover how we maintain communication with distant spacecraft as they traverse the cosmos. Learn about the challenges of signal delays, gravitational influences, and the ingenious solutions that keep us connected to our spacefarers.- Asteroid Belts Beyond Mars: Uncover the mysteries of asteroid belts beyond the familiar one between Mars and Jupiter. Delve into the Kuiper Belt and the Oort Cloud, exploring their significance and the icy bodies that inhabit these distant regions.- The Future of Space Wheels: Contemplate the possibility of building a Von Braun wheel or a space station with artificial gravity. Fred Watson Watson discusses the engineering challenges and potential benefits of these futuristic structures.For more Space Nuts, including our continually updating newsfeed and to listen to all our episodes, visit our website. Follow us on social media at SpaceNutsPod on facebook, X, YouTube, Tumblr,  Instagram, and TikTok. We love engaging with our community, so be sure to drop us a message or comment on your favourite 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/space-nuts/support.Stay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.

Happy Halloween! In this special episode of The LIUniverse, Dr. Charles Liu and co-host Allen Liu welcome back archaeology expert Hannah Liu, MEd to bring a scientific eye to the holiday and some of its most familiar denizens: witches, werewolves, zombies, black cats and even the Great Galactic Ghoul! As always, though, we start off with the day's joyfully cool cosmic thing: Comet C/2023 A3 (Tsuchinshan-ATLAS). You'll learn all about this visitor from the Oort Cloud, including how we know where it came from. Hannah talks about how ancient people responded to the arrival of a comet, including how leaders have used them for their own political purposes, and Charles brings up the inclusion of Halley's Comet on the Bayeux tapestry. Then it's time for Chuck to introduce our theme for this special episode: how the superstitions of the past interact with the mysteries of science. You'll hear from Hannah about the history of Halloween and its beginning as the Druidic celebration of Sawen (or Samhain) marking the end of the harvest season. Jumping ahead in history, we look at the Salem Witch Trials of the 17th Century, and the “science” that was used to condemn innocent young women to death for behaviors the powers that be disapproved of. You'll also get serious answers to spooky questions like “Do full moons affect behavior?” (We're talking the behavior of moths, sea turtles and humans, rather than werewolves, although we do actually get into the possible origins of the wolfman myth as embodied in the Greek myth of Zeus and Lycaon with a minor digression into D&D and legendary DJ Wolfman Jack.) After witches and werewolves, what else could we talk about next than zombies? In this case, natural zombie spiders created by the sting of a parasitic Tarantula Hawk wasp, or zombie ants that have been infected by the fungus Ophiocordyceps unilateralis. And yes, somehow The Walking Dead and The Last of Us shamble into the discussion, although regarding the latter, Allen explains why cordyceps probably couldn't survive in a human host. Next up, we look at the connection between black cats and the holiday. Hannah brings up the traditions of cats as “Witch's Familiars” and shapeshifters, and Chuck reminds us of the moment when we saw a cat transform into Professor McGonagall in Harry Potter and the Sorcerer's Stone. You'll hear about how STS-13, which was slated to be the thirteenth mission of the Space Shuttle, was renamed STS-41-C, in an attempt to avoid any superstition or reminder of the ill-fated Apollo 13. There was an alternate mission patch that featured an illustration of the shuttle landing under a giant black cat, referencing the mission's original designation, STS-13; and that the day the mission returned was April 13, 1984, which was a Friday the 13th. Speaking of space, Hannah asks Chuck about the concept of “The Great Galactic Ghoul,” the fictitious space monster blamed for the failure of nearly every probe sent to Mars by the Soviet Union, Japan, and even NASA between 1988 and 1999. Out of 10 missions, only 2 US probes landed successfully on the Red Planet. Since then, while the Ghoul did claim a few more victims including two missions by the UK, it seems to have gone into hiding, since the US has had multiple successful missions, as has China with their Tianwen lander and Zhurong rover, India, Russia, the European Space Agency, and the UAE. Finally, to end our special HaLIUween episode, Chuck brings up Albert Einstein's term, “Spooky Action at a Distance,” which he coined derisively to describe the physics concept known as quantum entanglement that he dismissed but has since been proven to exist. We hope you enjoyed this special episode of The LIUniverse, and, if you do, please support us on Patreon. Credits for Images Used in this Episode: Comet Tsuchinshan-Atlas – AlexL1024, Public Domain Diagram of the Oort Cloud – NASA, Public Domain Halley's Comet on the Bayeux tapestry – 11th century English embroiderers, Public Domain Irish hero Fionn fighting Aillen on Samhain – Beatrice Elvery, Public Domain Later depiction of the Salem Witch Trials – Joseph E, Public Domain Painting of the Aos Sí – John Duncan, Public Domain Ant infected with Ophiocordyceps unilateralis – Denis Zabin Tarantula Hawk wasp – Davehood, Public Domain STS-13 alternate mission patch –  Bp1222 Mars Climate Orbiter, unit error victim – NASA/JPL, Public Domain Purported face on Mars – Viking 1, NASA, Public Domain Better image of the same feature – NASA / JPL / Malin Space Science Systems, Public Domain China's Tianwen lander and Zhurong rover – China News Service #TheLIUniverse #CharlesLiu #AllenLiu #HannahLiu #SciencePodcast #AstronomyPodcast #Halloween #Samhain #Sawen #witches #werewolves #zombies #blackcats #GreatGalacticGhoul #SalemWitchTrials #Ophiocordycepsunilateralis #zombieantfungus #TarantulaHawkwasp #STS13 #CometC2023A3 #CometTsuchinshanAtlas #HalleysComet #BayeuxTapestry

WeatherJazz® is a program about weather, science, earth science, astronomy, and occasionally other random topics of interest hosted by former FOX 8 Cleveland meteorologist André Bernier. --- Support this podcast: https://podcasters.spotify.com/pod/show/andrebernier/support

Comet C/2023 A3 Tsuchinshan- ATLAS is hurtling through the inner solar system, gracing the Northern Hemisphere's early evening skies of mid-October.  Where do comets like this come from and where is it headed?  Why have we never seen it before, and why  is it moving opposite most comets?  Find the answers to these questions and more in this month's episode and article of the Backyard Astronomer Podcast.     Follow us at facebook.com/BackyardAstronomerAZ   Check out the NAZ Astro mission of STEM education at facebook.com/NAZAstro   Support STEM education patreon.com/NAZAstro   Our awesome sponsors: facebook.com/manzanitains  or visit  www.manzanitainsuranceandaccounting.com  

A dwarf planet far from the Sun may spend most of its time outside the Sun’s influence. In fact, it might have come from interstellar space – from another star. Sedna takes more than 11,000 years to orbit the Sun. It’s passing through the Kuiper Belt – a wide “doughnut” far beyond the orbit of Neptune, the Sun’s most distant major planet. Right now, Sedna’s almost eight billion miles from the Sun – about as close as it ever gets. At its most distant, it’s more than 10 times farther. That places it far beyond the Kuiper Belt – and well outside the “bubble” produced by the Sun’s magnetic field. Scientists have speculated that Sedna started in the Oort Cloud – a big “shell” of rocky, icy bodies that surrounds the Sun. It could have been pushed into its elongated orbit by the gravity of a passing star. Or it could have been a member of another star system that was pulled away by the Sun. There’s one other oddity about Sedna’s orbit: It seems to be influenced by the gravity of a much larger but unseen body far from the Sun – a possible “Planet Nine.” Because Sedna’s so far away, we don’t know a lot about it. It’s probably about 600 miles in diameter. And it’s quite red – an indication that radiation has been zapping its surface for a long, long time. No one has found a moon yet, so it’s hard to measure Sedna’s mass. So we still have a lot to learn about this remote little world far, far from the Sun. Script by Damond Benningfield

Paul Garner and Paul Larson talk about scientific evidence supporting the view that the earth is only thousands of years old.

Gravitational wave background of the Universe. A map of the Milky Way in neutrinos. More new discoveries from JWST. A major update for Starship.

Gravitational wave background of the Universe. A map of the Milky Way in neutrinos. More new discoveries from JWST. A major update for Starship.

Will LIGO detect gravitational waves when Betelgeuse explodes? Why are scientists so sure about dark matter? Could Betelgeuse become a black hole after it goes supernova? Why is the Oort cloud a sphere, not a disk? What determines the size of Lagrange points? All this and more in this week's Q&A!

Will LIGO detect gravitational waves when Betelgeuse explodes? Why are scientists so sure about dark matter? Could Betelgeuse become a black hole after it goes supernova? Why is the Oort cloud a sphere, not a disk? What determines the size of Lagrange points? All this and more in this week's Q&A!

Join your hosts Matt and Jamie in this mini episode of the Interplanetary Podcast, as we voyage to the outer reaches of our solar system and beyond to uncover the enigmas of the Oort Cloud! This icy cloud of asteroids and comets, teetering on the edge of interstellar space, holds the answers to many questions about our solar system's formation and its cosmic interactions. In this episode, we'll be exploring the fascinating history of the Oort Cloud, discussing its namesake - Dutch astronomer Jan Oort, and revealing why this region of space is so vital for understanding our place in the galaxy. From explaining how the Oort Cloud could potentially harbor long-period comets, to exploring the complex gravitational influences of the Milky Way on this distant cloud, Matt and Jamie will guide you through an interstellar journey that's sure to captivate every space enthusiast. We'll also delve into a groundbreaking study, discussing the surprising link between the Oort Cloud, high-energy comets, and the formation of the Earth's continental crust. Plus, we'll ponder the broader implications of this research, and how it is shaping our view of Earth's interactions with cosmic forces. So buckle up for an astronomical adventure, as we journey through the mysteries and marvels of the Oort Cloud, and remember, the sky is not the limit! Hosts: Jamie Franklin and Matt Russell Music: Matt Russell / Iam7 Cover Image: Midjourney Additional Narration: George Russell Twitter @interplanetypod

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Rose and Elliott fly through the solar system, from the Sun to the outer reaches of the Oort Cloud, and everything in between. They also talk about the arrival of a traveller from the furthest edges of the system.Find us at throughthetelescope.co.ukMusic:"Nowhere Land" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.0/ Get bonus content on Patreon Hosted on Acast. See acast.com/privacy for more information.

Why does the universe exist? Neil deGrasse Tyson and comedian Chuck Nice answer fan questions about black holes, wormholes, the expansion of the universe and more! What are our options to solve the crisis in cosmology?NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: https://startalkmedia.com/show/cosmic-queries-why-are-we-here/Thanks to our Patrons Fadi Hayek, Kemlyn Brazda, pascale manales, Jules Martin, and Scott Alderman for supporting us this week.Photo Credit: NASA, ESA, M. Robberto (Space Telescope Science Institute/ESA) and the Hubble Space Telescope Orion Treasury Project Team, Public domain, via Wikimedia Commons

Two wonderful milestones for our podcast this week: 5000 downloads and 100th episode published! So exciting for our project and deepest thanks to all of you who are listening, sharing and breathing with us.A few cosmic occurrences this week have inspired our Journey of New Light: Occult of Mars by the waxing gibbous moon Jan 30 and Comet C/2022 E3 (ZTF). A bright Green comet near Big Dipper and Camelopardalis (the camel), whose last appearance in our vicinity was 50,000 years ago. And the comet comes into the solar system from above out of the Oort Cloud, rather than in alignment with the orbit of the planets. Links below for more info.It's also the Celtic Festival of Imbolc tonight and tomorrow. This marks the halfway point between the Winter Solstice and the Spring Equinox.We use these cosmic and celestial markers as a bouncing off place to discover expansiveness and openness in our breath and our consciousness. Breathing into the back body, we open ourselves. Launching out into our imagination, we use our powers of subtle sensing to notice anything we can about the LIGHT of this new time. Even if you feel you are imagining this, it is an exercise in freedom and fluidity. Let yourself roam the cosmos with your expanded consciousness. We come to understand that Awe and Wonder are ways to use our conscious awareness to enrich our lives, and to create a steady stream of new thoughts, new awareness, new openness to all that is possible in this rich exciting time.https://www.theguardian.com/news/2023/jan/12/rebecca-solnit-climate-crisis-popular-imagination-why-we-need-new-storieshttps://www.google.com/search?client=safari&rls=en&q=comet+c/2022+e3+(ztf)&ie=UTF-8&oe=UTF-8https://earthsky.org/tonight/moon-occults-mars-january-30-31-2023/https://www.skyatnightmagazine.com/advice/comet-c-2022-e3-ztf/'Sacred Ceremony' music by Sanaya Roman (orindaben.com)Podcast production by iRonick Media (ironickmedia.com)Disclaimer:Breath exercises are not intended to diagnose or treat illness. Anyone undertaking to practice breath awareness and exercises should be mindful of their health and consult their health care practitioner if they have any questions about their fitness for this practice. 

Should we change "Dark Matter" to "Dark Curvature"? How do you navigate through dense asteroid fields? What's the future of space toilets? Do aliens block their outgoing signals? All these and more in this week's Q&A with Fraser Cain.

Should we change "Dark Matter" to "Dark Curvature"? How do you navigate through dense asteroid fields? What's the future of space toilets? Do aliens block their outgoing signals? All these and more in this week's Q&A with Fraser Cain.

This episode's DEEPLY IMMERSIVE Ambient Music was created with the sole purpose of creating a relaxed ambience just for you. Be it Studying, Relaxing, Coding, Sleeping, Reading or just about anything that requires a peaceful, futuristic, Blade-Runner ambient vibe. Imagine yourself on the observation deck of an interstellar spacecraft leaving the solar system and looking out at the Oort Cloud which is like a big, thick-walled bubble made of icy pieces of space debris the sizes of mountains and sometimes larger. The Oort Cloud might contain billions, or even trillions, of objects.  I know you have a seemingly endless amount of options for ambient music, so I TRULY appreciate you listening. Safe travels! I hope you enjoy it! You can show off your love for the podcast with our exclusive merchandise. With every purchase, you'll be supporting the creation of future episodes. Thanks and enjoy the ride! Check out our store here: https://www.etsy.com/shop/SpaceMusicDesign?ref=seller-platform-mcnav The music featured on the "Space music for your soul" podcast is protected by copyright law and may only be used for personal, non-commercial purposes. Any unauthorized reproduction, distribution, or commercial use of these tracks is strictly prohibited and may result in legal action. By listening to or downloading the music from this podcast, you agree to use it solely for personal listening and not for any other purpose. We ask that you respect the rights of the artists and the podcast by adhering to these terms of use. #spacemusicforyoursoul #relaxingmusic #ambientmusic #spacemusic #spaceambient #ambient #ambientsounds #studymusic #musicforstudying #deepfocus #codingmusic #spacetravel #sleepmusic #musicforsleeping #relaxingsounds #meditationsounds #BladeRunner #meditationmusic #sleeping music Learn more about your ad choices. Visit podcastchoices.com/adchoices

A real viral video shows a microscopic virus attempting to infect a cell; A new study suggests scientific innovation has been stagnating; Studying the sex lives of constipated scorpions; We thought the Oort cloud threw snowballs at us — but it's throwing rocks too; A biologist explains animal behaviour by tossing out the old nature/nurture debate; Quirks & Quarks listener question.

Psalm 8:3-4 When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; what is man, that thou art mindful of him? and the son of man, that thou visitest him? To support this ministry financially, visit: https://www.oneplace.com/donate/1232/29

Psalm 8:3-4 When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; what is man, that thou art mindful of him? and the son of man, that thou visitest him? To support this ministry financially, visit: https://www.oneplace.com/donate/1232/29

Earth faces many threats from the cosmos. Asteroids or comets could slam into our planet. We could be zapped by radiation from an exploding star. And our technology could be zapped by outbursts from the Sun. One thing we probably don't have to worry about is being sucked in by a black hole. The odds of such an encounter areastronomically small. Most of the known black holes are a few times more massive than the Sun. The gravity of such a black hole creates a strong “warp” in the space around it. That distorts the appearance of stars and galaxies that line up behind it. For any black hole within a few light-years, that distortion would be easy to see through a telescope. Since no such black holes have been seen, it's safe to say that none threatens Earth. In fact, the space between stars is, well, spacious. That makes it almost inconceivable that a black hole or any other stellar object could nail the solar system. But it is possible that something could pass within a couple of light-years. At that range, its gravity could stir up the Oort Cloud, a shell of trillions of big iceballs on the fringes of the solar system. A gentle nudge could push some of those iceballs toward the inner solar system, where they could slam into Earth. So far, though, astronomers have found no black holes, stars, or other bodies that are even remotely close enough to trigger such a bombardment. There's nothing to worry about. For now.  Script by Damond Benningfield Support McDonald Observatory

A star cataloged as Gliese 781 is approaching our solar system and in slightly more than a million years from now, will reach the Oort Cloud, likely disrupting the orbits of icy bodies that could head toward Earth. Plus, an Indian launch, Asteroid Day, understanding our ice giants, and a review of “Kaiju Preservation Society” by John Scalzi.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations.  Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at info@365DaysOfAstronomy.org.

A star cataloged as Gliese 781 is approaching our solar system and in slightly more than a million years from now, will reach the Oort Cloud, likely disrupting the orbits of icy bodies that could head toward Earth. Plus, an Indian launch, Asteroid Day, understanding our ice giants, and a review of “Kaiju Preservation Society” by John Scalzi.

Believers in the existence of extraterrestrial life were thrilled by a photo from NASA's Curiosity rover that appeared to show a doorway in the side of a cliff. The “door” is smaller than it appears, roughly the size of a doggie door, and experts say it's not an unusual formation in that type of rock, even here on Earth. (Which raises another interesting question…) We also discuss an exceptionally large comet that's headed into the solar system from the Oort Cloud, the theoretical trans-Neptunian bodies that orbit the Sun at such a distance that they're nearly impossible to see. (Don't worry; Comet Bernardinelli-Bernstein won't get any closer to us than the orbit of Saturn, and not until 2031.)

Time to continue our quest to unearth more about the farthest reaches of our solar system. Let's explore what astronomers call the Oort Cloud, a theorized region just beyond our solar system from which comets may originate. --- Support this podcast: https://anchor.fm/andrebernier/support

In this week's questions and answers show, I talk about supermassive black hole nucleosynthesis, the threat of grabby aliens and why would we ever bother building Von Neumann Probes. 00:00 Start 01:00 [Tatooine] Are elements being formed in quasars? 03:50 [Corusant] What will the coverage of the Moon landings be like? 06:39 [Hoth] How close will Comet C/2014 UN271 get to us? 08:29 [Naboo] Why send out Von Neumann Probes? 09:56 [Kamino] Will we actually develop the technology for Von Neumann Probes? 12:34 [Bespin] Why do colliding black holes turn mass into gravitational waves? 13:56 [Mustafar] Should we broadcast signals into space? 18:05 [Alderaan] Would bowl-spin habitats help with lower gravity? 21:07 [Dagobah] What will the first pictures from Webb be? 22:31 [Yarvin] How do we know the Oort Cloud exists? 23:31 [Mandalore] What telescopes can fly with Starship? 26:46 [Geonosis] Could a heavy suit mimic Earth gravity? 28:41 [Corellia] Why do people want to colonize other planets? Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

In this week's questions and answers show, I talk about supermassive black hole nucleosynthesis, the threat of grabby aliens and why would we ever bother building Von Neumann Probes. 00:00 Start 01:00 [Tatooine] Are elements being formed in quasars? 03:50 [Corusant] What will the coverage of the Moon landings be like? 06:39 [Hoth] How close will Comet C/2014 UN271 get to us? 08:29 [Naboo] Why send out Von Neumann Probes? 09:56 [Kamino] Will we actually develop the technology for Von Neumann Probes? 12:34 [Bespin] Why do colliding black holes turn mass into gravitational waves? 13:56 [Mustafar] Should we broadcast signals into space? 18:05 [Alderaan] Would bowl-spin habitats help with lower gravity? 21:07 [Dagobah] What will the first pictures from Webb be? 22:31 [Yarvin] How do we know the Oort Cloud exists? 23:31 [Mandalore] What telescopes can fly with Starship? 26:46 [Geonosis] Could a heavy suit mimic Earth gravity? 28:41 [Corellia] Why do people want to colonize other planets? Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

We all know our Solar System and it is our home. But, have you ever thought about the objects beyond Neptune? That is what we are learning about today! Akshay gets curious about the Kuiper Belt and the Oort Cloud which are outside of the planetary region! We will learn what these objects beyond the … Continue reading "Episode 90: Beyond the Planets! The Kuiper Belt and Oort Cloud"

First of all please send music, comments and jokes to lidellmakeswaves@gmail.com and I'll check em :) Feel free to join the pod patreon for the best sounds and max patches in the known universe and all that! link HERE Let's get on with the show! Ive been lucky enough to work with Daniel on my album Compass (2010) where he overdubbed a stack of these double speed, beautiful burnt crystaline, shimmering pentatonic runs that wind their way through the song “completely exposed” I was working with Chris Taylor from the Band Grizzly bear which is how many of you will have doubtless discovered the magic of Mr Rossen's voice and song craft and what a craft it is! His style is so singular and he's got that passion in his writing and playing that sets him apart with an intricate, elegant touch on guitar that has both urgency and solidity. There's real fire in him and at the same time a soft vulnerability and it all races around in these huge landscapes he paints in sound. Amazingly this is his first LP and what a beauty it is. A Timeless beauty at that. It's called YOU BELONG THERE and was released a few days ago on APRIL 8 2022 on warp records. He's currently out there, SOLO on the road on a short US and Euro Tour. I saw him in Nashville and was mesmerized. What a talent he is. A humble soul also, with immense talent and a welcome dash of dry humour. HERE is a link to his webpage so you can see he's coming to your town :) so with all that said, please welcome to the show, the rather wonderful. Daniel Rossen _____________ This episode features music from 5 excellent contributors! Oort CLoud services: Runnershigh No CIty West Erez Rok Zalokar https://shop.naturescenerecords.com/ Thank you to Fabfilter for sponsoring this nitty episode! I get super deep into the world of Timeless 3, their absolute BEAST of a delay plugin. It can pitch shift, distort, lofi, reverberate and custom tap its way into your world. It's available for desktop AND ios and I've made a bunch rather sweet presets for it on my adventures with it that work on both platforms. SO killer. In the nitty I explore the idea of making evolving delay sequences using the excellent tap designer part of the plugin. Patreons get the presets of course ! some juicy ones based on my marshall time modulator! _____________ BONUS POD RECOMMENDATION! I was super excited to listen to the pod that mylarmelodies put out with James Blake HERE is the link. Some super insightful nuggets in there. I highly recommend you give it a listen if you've not already.

ព្រំដែន​ប្រព័ន្ធព្រះអាទិត្យ​របស់​យើង​ មិនមែន​បញ្ចប់​ត្រឹម​តំបន់​ខ្សែក្រវាត់​គុយពែរ​នេះ​នោះទេ។ ​ទៅហួស​ពី​ខ្សែក្រវាត់​គុយពែរនេះ​ទៅ ​នៅមាន​តំបន់​មួយទៀត ​ដែលគេ​ឲ្យ​ឈ្មោះ​ថា អួតខ្លោវដ៍ ដោយយក​ទៅ​តាម​ឈ្មោះ​របស់​តារាវិទូ​ហូឡង់​ គឺ យ៉ាន អួត (Jan Oort)។ តំបន់​អួតខ្លោវដ៍​នេះ មាន​រាងជាស្វ៊ែរ​ព័ទ្ធជុំវិញ​ប្រព័ន្ធព្រះអាទិត្យ ហើយ​ព្រំដែន​ខាងក្រៅបំផុត ស្ថិត​នៅ​ចម្ងាយ​រហូតដល់​ទៅ ប្រមាណ​ជា ១ឆ្នាំពន្លឺ ទៅ១,៥ឆ្នាំពន្លឺ ពី​ព្រះអាទិត្យ។ យ៉ាន អួត (Jan Oort) បាន​លើកសម្មតិកម្ម អំពី​វត្តមាន​នៃ​តំបន់​រាងជាស្វ៊ែរ​ព័ទ្ធ​ជុំវិញ​ប្រព័ន្ធព្រះអាទិត្យ​របស់​យើង​ កាល​ពី​ឆ្នាំ១៩៥០ ពោលគឺ នៅ​ក្នុង​អំឡុងពេល​ប្រហាក់ប្រហែលគ្នា នឹង​ពេលដែល​សម្មតិកម្ម​ទាក់ទង​នឹង​ខ្សែក្រវាត់គុយពែរ ត្រូវ​បាន​លើកឡើង ដោយ​តារាវិទូ​ហូឡង់​មួយរូបទៀត គឺ​ Gerard Kuiper។ ដូចទៅនឹង​ករណី​ខ្សែក្រវាត់​គុយពែរដែរ សម្មតិកម្ម អំពី​តំបន់​អួតខ្លោវដ៍​នេះ ​កើតចេញ​ពី​ការ​សង្កេត​ទៅលើ​​ផ្កាយដុះកន្ទុយ​ ក៏ប៉ុន្តែ ខុសពី​ Gerard Kuiper ដែលផ្តោត​ការ​សិក្សា​ទៅលើ​ផ្កាយដុះកន្ទុយ ដែល​​ធ្វើ​ដំណើរចូល​មក​ក្បែរព្រះអាទិត្យ​ជាលក្ខណៈទៀងទាត់ ទៅតាម​វដ្ត​ខ្លី ក្រោម ២០ឆ្នាំ យ៉ាន អួត វិញ​ កត់សម្គាល់​ទៅលើ​​​ផ្កាយ​ដុះកន្ទុយ​មួយប្រភេទ​ទៀត ដែល​មាន​គន្លង​ចេញ​ទៅ​យ៉ាង​សែន​ឆ្ងាយ​ពី​ព្រះអាទិត្យ ឆ្ងាយ​រហូតដល់​ទៅ​រាប់ម៉ឺន ឬ​រាប់សែន​​ដង​នៃ​ចម្ងាយរវាង​ព្រះអាទិត្យ​និង​ភពផែនដី​របស់​យើង។ ក្រៅពី​មាន​គន្លង​ចេញ​ទៅ​យ៉ាង​ឆ្ងាយ​ពីព្រះអាទិត្យ គេ​ក៏​អាច​សង្កេតឃើញ​ផងដែរ​ថា ផ្កាយ​ដុះកន្ទុយ​អស់ទាំងនេះ មិនសុទ្ធតែ​មាន​គន្លង​ស្រប​ទៅនឹង​ប្លង់​របស់​ភព​ ដូចជា​ផ្កាយដុះកន្ទុយ ដែល​មក​ពី​តំបន់​ខ្សែក្រវាត់​គុយពែរនោះទេ ផ្ទុយទៅវិញ មាន​ផ្កាយដុះកន្ទុយខ្លះ​មាន​គន្លង​រាង​​បញ្ឆិត ឬ​​បញ្ឈរ ពីលើ​ចុះក្រោម ឬ​ពីក្រោម​ឡើងទៅលើ​ក៏​មាន។ ហេតុដូច្នេះហើយ​បាន​ជា យ៉ាន អួត បាន​សន្និដ្ឋាន​ថា នៅ​ប៉ែក​ខាង​ក្រៅប្រព័ន្ធព្រះអាទិត្យ ចេញទៅឆ្ងាយ​ហួស​ពី​តំបន់​ខ្សែក្រវាត់​គុយពែរ នៅមាន​តំបន់​មួយទៀត ដែល​ប្រមូលផ្តុំ​ទៅដោយ​បំណែក​តូចធំ ដែល​បន្សល់​ទុកតាំងពីពេល​កកើតប្រព័ន្ធព្រះអាទិត្យ ក៏ប៉ុន្តែ ខុស​ពី​តំបន់​ខ្សែក្រវាត់​គុយពែរ និង​តំបន់​ខ្សែក្រវាត់អាចម៍ផ្កាយ ដែល​មាន​រាងមូលសំប៉ែត​ដូចថាស​ តំបន់​អួតខ្លោវដ៍​នេះ​វិញ គឺមាន​រាង​មូល​ជា​ស្វ៊ែរ​ព័ទ្ធ​ជុំវិញ​ប្រព័ន្ធព្រះអាទិត្យ​របស់​យើង។ ជាទូទៅ ការ​ស្វែងរកបំណែក​ នៅ​ក្នុង​តំបន់​អួតខ្លោវដ៍​នេះ វា​គឺ​ជា​រឿង​ស្មុគស្មាញខ្លាំង ដោយសារ​តែ​វា​ស្ថិត​នៅ​​​ឆ្ងាយ​ខ្លាំងពេក​ពី​ព្រះអាទិត្យ និង​ពី​ភពផែនដី​របស់យើង។ ដើម្បី​​ងាយគិតសម្រៃ​អំពី​ចម្ងាយ​ដ៏សែន​ឆ្ងាយ​នេះ យើង​គួរ​កត់សម្គាល់ថា យាន Voyager ដែល​ជា​យាន​ដ៏​មាន​ល្បឿន​លឿន​បំផុត ហើយ​ដែល​បាន​ធ្វើ​ដំណើរ​ចេញ​ផុត​ពី​ដែន​ម៉ាញេទិច​របស់​ព្រះអាទិត្យ ចូល​ទៅដល់​លំហ Interstellar (ដែល​ពេលខ្លះ​ត្រូវ​បាន​គេ​ចាត់ទុក​ថា​បាន​ចេញ​ផុត​ពី​ប្រព័ន្ធព្រះអាទិត្យ​របស់​យើង​ទៅហើយ​នោះ) តាមពិត​ទៅ នៅមិនទាន់​ធ្វើ​ដំណើរ​ទៅដល់​តំបន់​អួតខ្លោវដ៍​នៅឡើយ​នោះទេ។ ក្នុងល្បឿន​បច្ចុប្បន្ននេះ Voyager ត្រូវ​ចំណាយពេល​ប្រមាណ​ជា ៣០០ឆ្នាំ​ទៀត ទើប​ធ្វើ​ដំណើរ​ទៅដល់​តំបន់​អួតខ្លោវដ៍ ហើយ​ទាល់តែ​ប្រមាណ​ជា ៣ម៉ឺនឆ្នាំ​ទៀត ទើប​អាចឆ្លង​ផុតតំបន់​អួតខ្លោវដ៍​នេះ​បាន។ បើទោះជា​គេ​អាច​ធ្វើ​ដំណើរ​ក្នុងល្បឿន​លឿន​ស្មើ​នឹង​ល្បឿន​របស់​ពន្លឺ​ក៏ដោយ ក៏​គេ​ត្រូវការ​ពេល​មិនតិច​នោះដែរ ទើប​អាច​ធ្វើ​ដំណើរ​ទៅដល់​​តំបន់​អួតខ្លោវដ៍​នេះ​បាន។ ក្នុងល្បឿន ៣០ម៉ឺន​គីឡូម៉ែត្រ​ក្នុង​មួយវិនាទី ពន្លឺដែល​ចេញ​ពីព្រះអាទិត្យ​ត្រូវ​ចំណាយពេល​ត្រឹមតែ ៨នាទី​ប៉ុណ្ណោះ ដើម្បី​មកដល់​ភពផែនដី​របស់យើង, ៤ម៉ោងកន្លះ​ទៅដល់​ភពណិបទូន ហើយ​ចូល​ទៅដល់​តំបន់​ខ្សែក្រវាត់​គុយពែរ, ប្រមាណ​ជា ៧ម៉ោងកន្លះ​​​​ចេញផុត​ពី​ខ្សែក្រវាត់​គុយពែរ ក៏ប៉ុន្តែ ទាល់តែ​ប្រមាណ​ជា ១០ថ្ងៃ​ក្រោ​យ​មក​ទើប​អាច​​ចូល​ទៅដល់​ព្រំដែន​ប៉ែក​ខាង​ក្នុង​នៃ​​តំបន់​អួតខ្លោវដ៍ ហើយ​បន្ទាប់មកទៀត ត្រូវការ​ពេល​ក្នុង​រង្វង់​ពី​១ឆ្នាំ ទៅ​១ឆ្នាំកន្លះ​ទៀត ទើប​​ពន្លឺ​ដែល​ចេញ​ពីព្រះអាទិត្យ​នេះ អាច​ធ្វើ​ដំណើរ​​ចេញ​ផុត​ពី​តំបន់​អួតខ្លោវដ៍។ និយាយជារួម ព្រំដែន​ខាង​ក្រៅបំផុត​នៃ​តំបន់​អួតខ្លោវដ៍ ស្ថិត​នៅ​ចម្ងាយ​រហូតដល់​ទៅ ១ឆ្នាំ ឬ១ឆ្នាំកន្លះ​ឯណោះ​ពី​ព្រះអាទិត្យ ពោលគឺ ប្រមាណ​ជា ១ភាគ៤ នៃ​ចម្ងាយ​ទៅកាន់​​ផ្កាយ Proxima Centauri ផ្កាយ​ដែល​ស្ថិត​នៅ​ជិតបំផុត​នឹង​ប្រព័ន្ធព្រះអាទិត្យ​របស់​យើង៕

ខ្សែក្រវាត់គុយពែរ (Kuiper Belt) គឺ​ជា​តំបន់ស្ថិត​នៅប៉ែក​ខាង​ក្រៅប្រព័ន្ធព្រះអាទិត្យ លាតសន្ធឹង​ចាប់ពី​គន្លង​របស់​ភព​ណិបទូន រហូត​ទៅដល់​ចម្ងាយ​ប្រមាណ​ពី ៣០ ទៅ ៥០AU (៣០ ទៅ ៥០ដង នៃ​ចម្ងាយ​រវាង​ផែនដី​ទៅព្រះអាទិត្យ)។ ឈ្មោះ "គុយពែរ" គឺ​យក​តាម​ឈ្មោះ​តារាវិទូ​ហូឡង់ Gerard Kuiper ដែល​បាន​លើកសម្មតិកម្ម​នៃវត្តមាន​ខ្សែក្រវាត់គុយពែរ​នេះឡើង កាល​ពី​ដើម​ទសវត្សរ៍​ឆ្នាំ១៩៥០។ Gerard Kuiper បាន​សិក្សា​លម្អិត​ទៅលើ​គន្លង​របស់​​ផ្កាយដុះកន្ទុយ ជាពិសេស ផ្កាយដុះកន្ទុយ​ ដែល​ធ្វើ​ដំណើរ​ចូល​មក​ប៉ែក​ខាង​ក្នុង​ប្រព័ន្ធព្រះអាទិត្យ​ជា​លក្ខណៈទៀងទាត់ ទៅតាម​វដ្ត​ដែល​មាន​រយៈពេល​ខ្លីក្រោម ២០ឆ្នាំ។ គេដឹង​ថា ផ្កាយដុះកន្ទុយ នៅពេល​ដែល​ចូល​មក​ក្បែរ​ព្រះអាទិត្យ​ម្តងៗ ម៉ាស់​របស់​វា​ក៏​ត្រូវ​ថយចុះ​ជាបន្តបន្ទាប់ ថយចុះ​ទៅតាម​ចំហាយទឹក ឧស្ម័ន ឬ​ធូលី ដែល​រលាយ​ដោយ​សារ​ថាមពលរបស់​​ព្រះអាទិត្យ។ ដូច្នេះ ផ្កាយ​ដុះកន្ទុយ​ដែល​ចូល​មក​ប៉ែក​ខាង​ក្នុង​ប្រព័ន្ធព្រះអាទិត្យ​ញឹកញាប់ ម៉ាស់​របស់​វា​ក៏​ត្រូវ​ថយចុះ​លឿន រហូត​ដល់​ពេល​មួយវា​ប្រាកដ​ជា​នឹង​​ត្រូវ​រលាយ​បាត់​រូបទាំងស្រុង ដោយ​មិន​អាច​​ស្ថិតស្ថិរ​នៅ​បាន​យូរ​នោះទេ។ តាមការប៉ាន់ស្មាន ដោយ​យោងទៅលើ​ម៉ាស់​របស់​វា ផ្កាយ​ដុះកន្ទុយ​អស់ទាំងនេះ អាច​មានជីវិត​យ៉ាងច្រើន​ត្រឹម​រាប់​សិបម៉ឺនឆ្នាំ​ប៉ុណ្ណោះ។ ដូច្នេះ សំណួរ​ដ៏ចម្បងមួយ​ត្រូវ​ចោទឡើង នៅ​ក្នុង​ចំណោម​អ្ន​កវិទ្យាសាស្រ្ត នៅ​ក្នុង​អំឡុងពេលនោះ គឺ​ចោទឡើង​ថា ផ្កាយដុះកន្ទុយ​ទាំងនេះ​គឺ​ជា​បំណែក​ដែល​បន្សល់ទុក​តាំង​ពី​ពេល​កកើតប្រព័ន្ធព្រះអាទិត្យ​ដំបូងមកម៉្លេះ តើ​ហេតុអ្វី​បាន​ជា​ជាង​៤ពាន់៥រយលាន​ឆ្នាំ ក្រោយ​ការ​កកើត​ប្រព័ន្ធព្រះអាទិត្យ​ គេ​នៅតែ​បន្ត​​ឃើញ​មាន​ផ្កាយ​ដុះកន្ទុយ​​តទៅទៀត​បែបនេះ?  Gerard Kuiper ក៏​បាន​លើកជា​សម្មតិកម្ម​ឡើង​ថា បំណែក​​ដែល​បន្សល់ទុក​ពី​ការកកើត​ប្រព័ន្ធព្រះអាទិត្យ គឺ​នៅ​ប្រមូលផ្តុំគ្នា នៅ​ក្នុង​តំបន់​មួយ​ នៅ​ប៉ែក​ខាង​ក្រៅប្រព័ន្ធព្រះអាទិត្យ ទៅ​ហួស​ពី​គន្លង​ភពណិបទូន ដោយ​ភាគច្រើន​វា​មាន​គន្លងថេរ​នៅ​ក្នុង​តំបន់​នោះ ដោយ​មិន​ចូល​មក​ប៉ែក​ខាង​ក្នុង​ប្រព័ន្ធព្រះអាទិត្យ​នោះទេ ម៉ាស់​របស់​វា​ក៏​មិន​ត្រូវ​ថយចុះ​ដោយ​ថាមពល​របស់​ព្រះអាទិត្យ​នោះដែរ ហេតុដូច្នេះហើយ​បាន​ជា​វា​អាច​ស្ថិតស្ថិរ​នៅ​គង់វង់​បាន​យូរ​រហូត​មក​ទល់​នឹង​ពេល​បច្ចុប្បន្ន​នេះ។ ផ្កាយដុះកន្ទុយ ដែល​គេ​សង្កេតឃើញ គឺ​មាន​ប្រភព​ដើម​ចេញ​ពី​តំបន់​នេះ​ឯង មានន័យថា កាល​ពីមុន​វា​ជា​បំណែក​ដែល​មាន​គន្លង​ថេរ នៅ​ក្នុង​តំបន់​ខ្សែក្រវាត់​គុយពែរ ក៏ប៉ុន្តែ ដោយសារ​តែ​​​វា​ត្រូវ​រង​នូវ​ការ​រំខាន​ណាមួយ (ដោយ​ការ​បុកទង្គិចគ្នា​ជាមួយ​នឹង​បំណែក​ផ្សេង ឬ​ដោយ​ឥទ្ធិពល​នៃ​កម្លាំងទំនាញ​របស់​ភព​ណាមួយ) ទើប​ធ្វើ​ឲ្យ​គន្លង​របស់​វា​ត្រូវ​ប្រែប្រួល ហើយ​នាំ​ចូល​មកប៉ែក​ខាង​ក្នុង​ប្រព័ន្ធព្រះអាទិត្យ​។ ក៏ប៉ុន្តែ ផ្កាយ​ដុះក​ន្ទុយ​ទាំងនេះ គ្រាន់តែ​ជា​ផ្នែក​ដ៏​តូចមួយ​ប៉ុណ្ណោះ ក្នុងពេល​ដែល​បំណែក​ជាច្រើន​ផ្សេងទៀត បន្ត​មានគន្លង​ថេរ នៅ​ក្នុង​តំបន់​ខ្សែក្រវាត់គុយពែរ។ ទោះជាយ៉ាងណា អ្វីដែល Gerard Kuiper លើកឡើង​នៅពេលនោះ គឺ​​នៅត្រឹមតែ​​​ជា​​ទ្រឹស្តី​មួយតែ​ប៉ុណ្ណោះ ដោយ​គេ​មិន​មាន​ភស្តុតាង​ជាក់លាក់ណា​មួយ ដែល​អាច​បញ្ជាក់​បាននោះទេ ដោយសារ​តែ​​​តំបន់​ខ្សែក្រវាត់​គុយពែរ​នេះ ស្ថិត​នៅ​ឆ្ងាយ​ខ្លាំងពេក​ពី​ផែនដី ហើយ​បំណែក​នៅ​ក្នុង​តំបន់​នេះ​ភាគច្រើន​ក៏​មាន​ទំហំ​តូចៗ ដែល​ជា​ហេតុ​ធ្វើ​ឲ្យ​គេ​ពិបាក​នឹង​ស្វែងរក​ឃើញ។ រហូតទាល់តែ​ប្រមាណ​ជា ៤០ឆ្នាំក្រោយ​មក នៅ​ឆ្នាំ១៩៩២ បំណែក​នៅ​ក្នុង​តំបន់​ខ្សែក្រវាត់​គុយពែរ ដែល​គេ​ឲ្យ​ឈ្មោះ​ជា​ភាសា​អង់គ្លេស​ថា « Kuiper Belt Objects » ឬ KBO ត្រូ​វបាន​គេ​រកឃើញ​ជា​លើកទីមួយ ហើយ​ដែល​ជា​ភស្តុតាង​ដំបូងបង្អស់បញ្ជាក់​អំពី​​​ខ្សែក្រវាត់​គុយពែរ។ គិតរហូតមកទល់​នឹង​ពេល​បច្ចុប្បន្ន​នេះ គេបានរកឃើញ​បំណែក​នៅ​ក្នុង​តំបន់​ខ្សែក្រវាត់​គុយពែរ (Kuiper Belt Objects) ចំនួន​ជាង ២ពាន់ ហើយ​គេ​ប៉ាន់ស្មាន​ថា គិតជាសរុប នៅក្នុង​តំបន់​ខ្សែក្រវាត់​គុយពែរនេះ បំណែក​ដែល​មាន​ទំហំ​ចាប់​ពី ១០០គីឡូម៉ែត្រ​ឡើងទៅ អាច​មាន​រហូតដល់​ទៅ​រាប់សិបម៉ឺន ហើយ​បើ​រាប់​ទាំង​បំណែក​តូចៗល្មម ទំហំ​ចាប់ពី ២០គីឡូម៉ែត្រ​ឡើង គឺ​អាច​មាន​រហូតដល់​ទៅ​រាប់រយលាន​ឯណោះ។ ខ្សែក្រវាត់​គុយពែរនេះ​ក៏​មិនមែន​ជា​ព្រំដែន​ចុងក្រោយ​នៃ​ប្រព័ន្ធព្រះអាទិត្យ​របស់​យើង​នោះដែរ ដោយ​​ហួស​ពី​ខ្សែក្រវាត់​គុយពែរនេះ​ទៅ ​នៅមាន​តំបន់​មួយទៀត ដែល​មាន​រាង​ជាស្វ៊ែរ​ស្ថិត​នៅ​ព័ទ្ធជុំវិញ​ប្រព័ន្ធអាទិត្យ​របស់​យើង ហើយ​ដែលគេ​ឲ្យ​ឈ្មោះ​ថា អួតខ្លោវដ៍ (Oort Cloud)៕

In E62, my returning guest is Dave Petrella: an astrologer, biologist, spiritual guide, and Oak Island theorist. Dave has studied world religions extensively, along with eastern medicine, metaphysics, and topics related to extraterrestrial intelligence. Today, Dave and I discuss both the Kuiper Belt and the Oort Cloud. Join us as we make sense of the mainstream model of our solar system, and the interesting implications for Astrology and Flat Earth Theory. Thank you for sharing!QGS E62 YouTube link: https://youtu.be/y7PIYd8NUb4Dave Petrella's Links:Facebook: Dave Petrella https://www.facebook.com/profile.php?id=100009919805111Instagram: davepetrella12Email: davepetrella@hotmail.comKaren's Links:Website: https://www.karenholtonhealthcoach.com/Email: forbiddentransformation@gmail.com Channels:Censored Content: https://www.youtube.com/c/karenholtontvUncensored Content: https://odysee.com/@KarenHoltonTV – please follow me on Odysee!

In this week's questions and answers show, I explain why people might see extraterrestrials as a threat. What could we learn about astronomy if we lived at the center of a supervoid, and how far away are we from the Big Bang? 00:00 Start 01:10 Why do we assume extraterrestrials are evil? 07:40 Could we see anything from within a supervoid? 09:40 What if we lived near the Big Bang? 10:25 Will James Webb ever look at Earth? 11:34 What's the benefit of helium 3? 14:47 Can we take animals to Mars? 17:13 Will machines do all our exploring? 20:36 Was the Universe as small as a grapefruit? 21:42 Does the expansion of the Universe travel faster than the speed of light? 23:04 Should we be worried about rogue black holes? 25:14 When will we see the calibration star from James Webb? 27:08 Did the Three-Body Problem change my opinion about extraterrestrials? 30:07 Could there have been many Big Bangs and other universes? 31:52 What is the Oort Cloud? 33:00 Why do stars like Sirius shimmer? 35:15 Will James Webb see the first stars? Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

In this week's episode, I talk about the possibility of a copy of the Hubble Space Telescope, if satellites could relay information like a mesh network, and if it's even possible for plants to survive on the surface of Mars. 00:00 Start 01:22 Could we launch a copy of Hubble? 03:34 Could satellites relay information like a mesh network? 06:17 Could plants survive on Mars? 08:52 Could Planet 9 be dark matter? 11:12 Do globular clusters ever collapse into disks? 12:36 Are there any new questions about Lagrange Points? 14:07 Would the Solar System change if you build a Dyson Sphere? 17:08 Could we see the Oort Cloud? 19:39 Could we genetically modify humans to survive on Mars? 22:32 Are we the center of the Big Bang? 24:32 Could a warp drive escape a black hole? 25:58 Could we fix Mars by crashing Phobos into it? 27:11 Will there be a servicing mission for James Webb? 28:41 Will humans visit anywhere other than Mars? 31:13 Could life have formed shortly after the Big Bang? 32:50 Could a moon be bigger than its planet? 34:43 How could the Universe be infinite if it's expanding for a finite time? Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

Astronomy, Science, Space, and Stuff.Space Nuts Episode 288 with Professor Fred Watson & Andrew Dunkley •The Moon's Magnetic Field mystery...what's the go? Fred has the details…•A gigantic exo-planet discovery has scientists excited.•A tip from a listener – the search is on for a Falcon Rocket body that they think may have crashed into the moon. Now they're asking amateur astronomers and space photographers to help locate it. Fred has details on how you can join the hunt.•Listener questions: We have questions about the James Webb Telescope (two of them in fact) and another about the Oort Cloud. As usual, Fred has answers.NEW: The Space Nuts Premium edition is now available on Spotify for our Supercast subscribers (sorry, Patreon isn't there yet…fingers crossed). To access the premium feed, just log in to your Spotify account and do a search. Use your current subscriber details to unlock the premium content. If you'd like to become a subscriber, just visit https://spacenuts.supercast.tech and sign up. You even get a 30-day free trial to see if it's right for you. Nothing to lose.Premium Editions also now available via subscription through Apple Podcasts…again with a 30-day free trial.For more Space Nuts, visit our websites. Links: https://linktr.ee/biteszHQ New: Listen to Space Nuts on your favorite app with the Universal listen link: https://link.chtbl.com/NAwvL_XP Sponsor Details:New link: https://spacenuts.io New Link: https://spacenutsshop.com to go directly to our shop.New: Take the Space Nuts Listener Feedback survey. We need to know how you think the show is going. Take the 1-minute survey at https://spacenutspodcast.com/feedback - thank you.If you love this podcast, please get someone else to listen to. Thank you…New: If you find value in Andrew & Fred's work, you might like to consider buying them a coffee. They'd really appreciate the break. Thank you… https://www.buymeacoffee.com/spacenuts

In Need to Know, Isaiah's got all the details on Leonard, a long-period Comet set to make its closest approach to Earth on December 12. Bianca questions whether it was comets or God that brought water to Earth. In All the Feels, holiday party etiquette is discussed; is it OK to "show your face" and dash? Rules for navigating holiday functions at work are shared. In Gotta Do, both co-hosts announce the nominees for the 2021 W&W Awards; categories include: Show of the Year; Guest of the Year; Book of the Year; and Best Series, Segment or Special. 

For almost as long as astronomers have been fascinated by the bright, shining points of light in the sky, they've also wondered about the space between them.  After all, smaller objects had been known to fall from the sky for thousands of years, made of metal of otherworldly strength and mysterious magnetic properties.  But where did these objects come from? Alexander Winn enlightens us...  You can catch this episode along with the rest of them on YouTube with closed caption. Keep up with us in other places....  ✦  Exclusive stuff via Patreon ✦  Check us out on Facebook ✦ Follow us on Twitter ✦ Here we are on Instagram   Happy Terraforming ...    Research & Writing by Jake Koster    Music by: Still Audio Song: Amongst the Stars (Cinematic Space Adventure)  Proof of purchase: A license to use the following media was purchased under Pond5's Content License Agreement, a copy of which is available for review at https://www.pond5.com/legal/license. The Pond5 license authorizes the licensee to use the media in the licensee's own commercial or non-commercial production and to copy, broadcast, distribute, display, perform and monetize the production or work in any medium - including posting and monetization on YouTube - on the terms and conditions outlined therein.   Music: "Quantum Particles" - by Jonny Easton Link: https://youtu.be/HKinw3NqWFQ Check out his channel Link: https://www.youtube.com/jonnyeaston    License Creative Commons Attribution license (reuse allowed)        

Welcome to the new style Q&As, which we're now recording every Monday live on my YouTube channel at 5pm Pacific Time. This week we got a lot of great questions about the Proxima Centauri signal, the Fermi Paradox, and Breakthrough Starshot. 00:00:00 Start 00:00:14 Is Starlink portable? 00:01:07 Any thoughts on the Wow signal? 00:03:58 What are magnetars? 00:06:20 Any followup planned on Proxima signal? 00:07:34 My answer to the Fermi Paradox 00:11:50 Why don't neutron stars turn into black holes? 00:13:03 Could Breakthrough Starshot confirm the Oort Cloud? 00:15:07 Can Breaththrough Starshot slow down? 00:20:03 Do other planets have pole stars? 00:20:45 Should we put a telescope out by Neptune or Uranus? 00:23:15 Next rare celestial event 00:26:12 Does Skylon have a future in space exploration? 00:30:35 How will humanity end? 00:33:47 Is Elon Musk a supervillain? 00:35:16 When can regular people do space tourism? 00:38:12 Am I up to date on the Expanse? 00:39:51 SG1 or the Expanse? 00:41:37 Does everything experience gravitational lensing? 00:44:07 What do I think of DALL-E? 00:47:18 Doing space journalism for 21 years 00:48:39 Space assembly of telescopes.