Podcasts about earth atmosphere

Snow on the moon? Yes, though not recently... but maybe billions of years ago. Recent discoveries indicate that the early moon, orbiting just 20,000 miles above our planet at the time, may have shared a dynamic magnetic field with that of the Earth, resulting in the moon having an early atmosphere about twice as dense as the Martian atmosphere is today! This has wide implications for planetary science, but perhaps our favorite is that it may have snowed both carbon dioxide and water ice on the moon back in the day. We're also talking about the amazing launch and recovery of New Glenn, the plight of the Chinese taikonauts aboard the Tiangong space station, and a recent SpaceX memo about—no surprises here—a delay to their lunar landing program for Artemis III. Join us! Headlines: China's Shenzhou Astronauts Still Dealing with Stricken Spacecraft Blue Origin's New Glenn Rocket Launches and Lands, Sends Probes Toward Mars Comet C/2025 K1 Atlas Breaks Up After Solar Flyby SpaceX Artemis Moon Landing Delayed to 2028 Main Topic: Moon Volatiles and Lunar Science The Moon's Formation and the Giant Impact Hypothesis Intertwined Magnetic Fields on the Early Moon and Earth Transmission of Earth Atmosphere and Volatiles to Lunar Surface Lunar Outgassing, Volcanism, and Creation of an Ancient Lunar Atmosphere Permanently Shadowed Regions as Time Capsules of Early Moon and Earth Scientific Importance of NASA's VIPER Rover for Analyzing Polar Ices and Volatiles Commercial and Scientific Value of Moon's Minerals and Resources Long-Term Preservation of Lunar Samples for Future Research Early Moon Weather: Volatile Snow, Atmosphere Collapse, and What It Means for Lunar Resources Educational Outreach through Virtual Space Science Experiences Hosts: Rod Pyle and Tariq Malik Guest: Dr. Jim Green Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free shows, a members-only Discord, and behind-the-scenes access. Join today: https://twit.tv/clubtwit

Snow on the moon? Yes, though not recently... but maybe billions of years ago. Recent discoveries indicate that the early moon, orbiting just 20,000 miles above our planet at the time, may have shared a dynamic magnetic field with that of the Earth, resulting in the moon having an early atmosphere about twice as dense as the Martian atmosphere is today! This has wide implications for planetary science, but perhaps our favorite is that it may have snowed both carbon dioxide and water ice on the moon back in the day. We're also talking about the amazing launch and recovery of New Glenn, the plight of the Chinese taikonauts aboard the Tiangong space station, and a recent SpaceX memo about—no surprises here—a delay to their lunar landing program for Artemis III. Join us! Headlines: China's Shenzhou Astronauts Still Dealing with Stricken Spacecraft Blue Origin's New Glenn Rocket Launches and Lands, Sends Probes Toward Mars Comet C/2025 K1 Atlas Breaks Up After Solar Flyby SpaceX Artemis Moon Landing Delayed to 2028 Main Topic: Moon Volatiles and Lunar Science The Moon's Formation and the Giant Impact Hypothesis Intertwined Magnetic Fields on the Early Moon and Earth Transmission of Earth Atmosphere and Volatiles to Lunar Surface Lunar Outgassing, Volcanism, and Creation of an Ancient Lunar Atmosphere Permanently Shadowed Regions as Time Capsules of Early Moon and Earth Scientific Importance of NASA's VIPER Rover for Analyzing Polar Ices and Volatiles Commercial and Scientific Value of Moon's Minerals and Resources Long-Term Preservation of Lunar Samples for Future Research Early Moon Weather: Volatile Snow, Atmosphere Collapse, and What It Means for Lunar Resources Educational Outreach through Virtual Space Science Experiences Hosts: Rod Pyle and Tariq Malik Guest: Dr. Jim Green Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free shows, a members-only Discord, and behind-the-scenes access. Join today: https://twit.tv/clubtwit

Snow on the moon? Yes, though not recently... but maybe billions of years ago. Recent discoveries indicate that the early moon, orbiting just 20,000 miles above our planet at the time, may have shared a dynamic magnetic field with that of the Earth, resulting in the moon having an early atmosphere about twice as dense as the Martian atmosphere is today! This has wide implications for planetary science, but perhaps our favorite is that it may have snowed both carbon dioxide and water ice on the moon back in the day. We're also talking about the amazing launch and recovery of New Glenn, the plight of the Chinese taikonauts aboard the Tiangong space station, and a recent SpaceX memo about—no surprises here—a delay to their lunar landing program for Artemis III. Join us! Headlines: China's Shenzhou Astronauts Still Dealing with Stricken Spacecraft Blue Origin's New Glenn Rocket Launches and Lands, Sends Probes Toward Mars Comet C/2025 K1 Atlas Breaks Up After Solar Flyby SpaceX Artemis Moon Landing Delayed to 2028 Main Topic: Moon Volatiles and Lunar Science The Moon's Formation and the Giant Impact Hypothesis Intertwined Magnetic Fields on the Early Moon and Earth Transmission of Earth Atmosphere and Volatiles to Lunar Surface Lunar Outgassing, Volcanism, and Creation of an Ancient Lunar Atmosphere Permanently Shadowed Regions as Time Capsules of Early Moon and Earth Scientific Importance of NASA's VIPER Rover for Analyzing Polar Ices and Volatiles Commercial and Scientific Value of Moon's Minerals and Resources Long-Term Preservation of Lunar Samples for Future Research Early Moon Weather: Volatile Snow, Atmosphere Collapse, and What It Means for Lunar Resources Educational Outreach through Virtual Space Science Experiences Hosts: Rod Pyle and Tariq Malik Guest: Dr. Jim Green Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free shows, a members-only Discord, and behind-the-scenes access. Join today: https://twit.tv/clubtwit

Snow on the moon? Yes, though not recently... but maybe billions of years ago. Recent discoveries indicate that the early moon, orbiting just 20,000 miles above our planet at the time, may have shared a dynamic magnetic field with that of the Earth, resulting in the moon having an early atmosphere about twice as dense as the Martian atmosphere is today! This has wide implications for planetary science, but perhaps our favorite is that it may have snowed both carbon dioxide and water ice on the moon back in the day. We're also talking about the amazing launch and recovery of New Glenn, the plight of the Chinese taikonauts aboard the Tiangong space station, and a recent SpaceX memo about—no surprises here—a delay to their lunar landing program for Artemis III. Join us! Headlines: China's Shenzhou Astronauts Still Dealing with Stricken Spacecraft Blue Origin's New Glenn Rocket Launches and Lands, Sends Probes Toward Mars Comet C/2025 K1 Atlas Breaks Up After Solar Flyby SpaceX Artemis Moon Landing Delayed to 2028 Main Topic: Moon Volatiles and Lunar Science The Moon's Formation and the Giant Impact Hypothesis Intertwined Magnetic Fields on the Early Moon and Earth Transmission of Earth Atmosphere and Volatiles to Lunar Surface Lunar Outgassing, Volcanism, and Creation of an Ancient Lunar Atmosphere Permanently Shadowed Regions as Time Capsules of Early Moon and Earth Scientific Importance of NASA's VIPER Rover for Analyzing Polar Ices and Volatiles Commercial and Scientific Value of Moon's Minerals and Resources Long-Term Preservation of Lunar Samples for Future Research Early Moon Weather: Volatile Snow, Atmosphere Collapse, and What It Means for Lunar Resources Educational Outreach through Virtual Space Science Experiences Hosts: Rod Pyle and Tariq Malik Guest: Dr. Jim Green Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free shows, a members-only Discord, and behind-the-scenes access. Join today: https://twit.tv/clubtwit

Scientists say Earth's atmosphere could "inflate" like a balloon as the planet heats up! When air warms, it expands, and this means the atmosphere could stretch farther into space. This might sound cool, but it could mess with satellites, causing them to slow down or go off track. This inflation is already happening a bit due to global warming, and experts think it could get worse if temperatures keep rising. The extra drag on satellites would make space missions harder and more expensive. It's a reminder that even outer space feels the effects of what happens on Earth! #brightside Animation is created by Bright Side. ---------------------------------------------------------------------------------------- Music from TheSoul Sound: https://thesoul-sound.com/ Listen to Bright Side on: Spotify - https://open.spotify.com/show/0hUkPxD... Apple Podcast - https://podcasts.apple.com/podcast/id... ---------------------------------------------------------------------------------------- Our Social Media: Facebook -   / brightside   Instagram -   / brightside.official   Tik Tok - https://www.tiktok.com/@brightside.of... Snapchat -   / 1866144599336960   Stock materials (photos, footages and other): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- For more videos and articles visit: http://www.brightside.me Learn more about your ad choices. Visit megaphone.fm/adchoices

How do we predict our planet's most powerful forces? Neil deGrasse Tyson and comedian Chuck Nice learn about extreme weather, hurricanes, coronal mass ejections, and preparing for space storms hurtling our way with NOAA Administrator Richard Spinrad.NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free.Thanks to our Patrons Dwight N Keown, Nathan Veatch, CURTIS J ESSEN, John Havranek, Vanessa Harding, Aiden Chauvette, Matthew Stork, SpaceTimePete, larry hughes, Anselmo Garcia, Nessa Nova, Tanya Henry, Neil Livingston, oliver stanton, Regis, Micheal Stewart, DP337, Rob Butler, Beth, and Caton Smith for supporting us this week. Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to new episodes ad-free and a whole week early.

An experimental and theoretical investigation of HCN production in the Hadean Earth atmosphere by Ben K. D. Pearce et al. on Tuesday 20 September A critical early stage for the origin of life on Earth may have involved the production of hydrogen cyanide (HCN) in a reducing, predominantly H$_2$ atmosphere. HCN is crucial for the origin of life as it is a possible precursor to several biomolecules that make up RNA and proteins including nucleobases, nucleotides, amino acids, and ribose. In this work, we perform an in depth experimental and theoretical investigation of HCN production in reducing atmospheric conditions (89-95% H$_2$) possibly representing the earliest stages of the Hadean eon, ~4.5-4.3 billion years ago. We make use of cold plasma discharges - a laboratory analog to shortwave UV radiation - to simulate HCN production in the upper layers of the atmosphere for CH$_4$ abundances ranging from 0.1-6.5%. We then combine experimental mass spectrum measurements with our theoretical plasma models to estimate the HCN concentrations produced in our experiments. We find that upper atmospheric HCN production scales linearly with CH$_4$ abundance with the relation [HCN] = 0.13 $pm$ 0.01[CH$_4$]. Concentrations of HCN near the surface of the Hadean Earth are expected to be about 2-3 orders of magnitude lower. The addition of 1% water to our experiments results in a ~50% reduction in HCN production. We find that four reactions are primarily responsible for HCN production in our experiments: (i) $^4$N + CH$_3$ -> H$_2$CN + H -> HCN + H$_2$, (ii) $^4$N + CH -> CN + H followed by CN + CH$_4$ -> HCN + CH$_3$, (iii) C$_2$H$_4$ + $^4$N -> HCN + CH$_3$, and (iv) $^4$N + $^3$CH$_2$ -> HCN + H. The most prebiotically favorable Hadean atmosphere would have been very rich in CH$_4$ (> 5%), and as a result of greenhouse effects the surface would be likely very hot. In such a prebiotic scenario, it may have been important to incorporate HCN into organic hazes that could later release biomolecules and precursors into the first ponds. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.09257v1

An experimental and theoretical investigation of HCN production in the Hadean Earth atmosphere by Ben K. D. Pearce et al. on Tuesday 20 September A critical early stage for the origin of life on Earth may have involved the production of hydrogen cyanide (HCN) in a reducing, predominantly H$_2$ atmosphere. HCN is crucial for the origin of life as it is a possible precursor to several biomolecules that make up RNA and proteins including nucleobases, nucleotides, amino acids, and ribose. In this work, we perform an in depth experimental and theoretical investigation of HCN production in reducing atmospheric conditions (89-95% H$_2$) possibly representing the earliest stages of the Hadean eon, ~4.5-4.3 billion years ago. We make use of cold plasma discharges - a laboratory analog to shortwave UV radiation - to simulate HCN production in the upper layers of the atmosphere for CH$_4$ abundances ranging from 0.1-6.5%. We then combine experimental mass spectrum measurements with our theoretical plasma models to estimate the HCN concentrations produced in our experiments. We find that upper atmospheric HCN production scales linearly with CH$_4$ abundance with the relation [HCN] = 0.13 $pm$ 0.01[CH$_4$]. Concentrations of HCN near the surface of the Hadean Earth are expected to be about 2-3 orders of magnitude lower. The addition of 1% water to our experiments results in a ~50% reduction in HCN production. We find that four reactions are primarily responsible for HCN production in our experiments: (i) $^4$N + CH$_3$ -> H$_2$CN + H -> HCN + H$_2$, (ii) $^4$N + CH -> CN + H followed by CN + CH$_4$ -> HCN + CH$_3$, (iii) C$_2$H$_4$ + $^4$N -> HCN + CH$_3$, and (iv) $^4$N + $^3$CH$_2$ -> HCN + H. The most prebiotically favorable Hadean atmosphere would have been very rich in CH$_4$ (> 5%), and as a result of greenhouse effects the surface would be likely very hot. In such a prebiotic scenario, it may have been important to incorporate HCN into organic hazes that could later release biomolecules and precursors into the first ponds. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.09257v1

Two climate engineering technologies have been inscribed into the Intergovernmental Panel on Climate Change's Fifth Assessment Report outlining they'll be crucial in ensuring we don't exceed 2 degrees of global warming. However, with little evidence as to how these technologies work in the field, is this just another attempt to stall more proactive climate action?Featuring:Jonathan Marshall - Future Fellow in the Faculty of Arts and Social Sciences at the University of Technology Sydney. Kerryn Brent - Law Lecturer at the University of Tasmania. Steven Siems - Professor in the School of Earth Atmosphere and Environment at Monash University.

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