This Week in Space (Audio)

• TWiS 151: In Search of Alien Megastructures - With Former NASA Chief Scientist, Dr. Jim Green

  In this episode of This Week in Space, Rod Pyle and Tariq Malik talk with Dr. Jim Green, former NASA Chief Scientist. He discusses how we can search for technosignatures that might indicate advanced civilizations in other star systems, new ideas on Mars sample return, and his fascinating experience consulting on the movie, The Martian! Also: this week's robotic landings on the Moon - one successful, one partly so; what's up with the USAF X-37B mini-shuttle; and recent news on those Energizer Bunnies of space, Voyagers 1&2. Their wings have been clipped a bit, but they just keep going... join us! News Lunar Landing Week: Firefly Aerospace's Blue Ghost lander achieved a flawless touchdown in Mare Chrisium, the Intuitive Machines Athena lander reached the Moon's south polar region but experienced issues with its navigation radar (and tipped over), and SpaceX's Starship test flight 8 successfully caught its booster for the third time but lost control of the upper stage, resulting in the breakup of the upper stage and debris over the Bahamas and Caribbean. NASA powered down additional instruments on both Voyager 1 and Voyager 2 to extend their remaining power supply, including Voyager 1's cosmic ray system that helped confirm its entry into interstellar space in 2012. The secretive US Space Force X-37B space plane landed at Vandenberg Space Force Base after 434 days in orbit, completing its seventh mission, which tested new orbital capabilities, including aerobraking techniques. A newly released list showcases the world's top ten locations for dark skies and stargazing, with the US only having only one location—in Hawaii—to make the list. Dr. Jim Green His Career: Dr. Green goes over his former role as NASA's Chief Scientist and highlights key aspects of his career, including running the National Space Science Data Center (NSSDC) and leading NASA's Planetary Science Division, and how his interest in space first began. The Martian: Dr. Green also explains how he got involved as a consultant for Ridley Scott's movie, "The Martian," and how NASA got really involved with the film. He also shares his favorite scene from the movie. NASA's Search for Alien Civilizations: Dr. Green shares how he helped shift NASA's focus from traditional SETI to searching for technosignatures like Dyson Spheres and O'Neill structures in other star systems, securing $10 million in funding for research that could detect megastructures in our astronomical data while noting that humanity may need similar space habitats in 800 million years when the sun makes Earth uninhabitable. Mars Sample Return Strategy: Dr. Green explains how NASA's evolving plan to return samples fropm Mars includes developing Mars Ascent Vehicles that could eventually support human missions while revealing that Perseverance was deliberately designed to place sample tubes on the surface so any nation could retrieve them, making the mission more politically viable with budget offices and Congress. Humanity's Cosmic Future: Dr. Green reveals that he helped create NASA's Commercial Lunar Payload Services (CLPS) program to support new companies for lunar missions. Despite early failures, he emphasized that humanity must utilize space resources and capabilities to ensure our species' long-term survival. 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

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• TWiS 150: Our Listener Special - We Answer Your Questions—Possibly Correctly!

  On episode 150 of This Week in Space, it's our Listener Special edition! Not only do we answer your questions and respond to your comments, but we lined up a number of your most tummy-tickling space jokes in the humor shooting gallery. This one is more fun than wearing new shoes! Join us as we talk about asteroid 2024YR4, the Space Launch System's prospects, Katy Perry in space, the newest lunar missions, the X-37B "secret shuttle," Apollo-era flight director Gene Kranz and astronaut Buzz Aldrin, solar sails, the cage match between Elon and astronaut Andreas Morgenson, and the best meteor shower of the year! Headlines Asteroid 2024 YR4 no longer a threat - The Earth-shattering asteroid that briefly had a record high 3.2% chance of impact has been downgraded to a 1 in 20,000 risk after pre-discovery data was analyzed, sparing Barstow and the rest of Earth. SLS faces uncertain future - Even long-time supporters like Scott Pace (former National Space Council secretary) are suggesting an "off-ramp" from the SLS rocket to commercial providers, signaling a potential shift in NASA's approach to lunar missions. Lunar Trailblazer mission communication issues - The recently launched lunar orbiter briefly lost contact after launch on a Falcon 9 but has since established a heartbeat. Blue Origin announces all-female crew for NS-31 - The upcoming mission will feature singer Katy Perry, Lauren Sanchez, and four other accomplished women, marking the first all-female crew since Valentina Tereshkova's solo flight in the 1960s. Blue Ghost lunar landing imminent - Firefly Aerospace's first moon lander is scheduled to touch down on March 2nd, joining two other private landers (from Intuitive Machines and ispace) headed to the moon in the coming weeks. Listener Questions X-37B space plane purpose - The hosts discussed the secretive Space Force vehicle that's been in orbit for 908 days, likely testing technologies like hall thrusters and conducting reconnaissance. Elon Musk vs. astronauts controversy - The hosts addressed the Twitter/X confrontation between Elon Musk and astronauts (including Andreas Morgensen) regarding claims that astronauts were "stranded" on the ISS for political reasons. Gene Kranz's impact during Apollo - Rod shared his experience interviewing the legendary flight director, highlighting Kranz's "dictum" speech after the Apollo 1 fire and his transition to a more reflective persona later in life. Meeting Buzz Aldrin - The hosts described Aldrin as passionate, technically brilliant, and candid about his personal struggles, with Tariq sharing how Aldrin was the subject of his first professional space article in 1999. Solar sail technology potential - They discussed the success of Planetary Society's LightSail 2 and other solar sail missions, lamenting that the technology hasn't been utilized more extensively for deep space missions. Best meteor showers to observe - The hosts recommended the Perseids (August), Geminids (December), and Leonids (November) as the most impressive annual meteor showers, emphasizing the importance of dark skies for optimal viewing. Convincing moon landing deniers - They discussed the challenge of persuading conspiracy theorists, citing evidence including Soviet tracking confirmation and modern lunar reconnaissance photos showing Apollo landing sites. Hosts: Rod Pyle and Tariq Malik 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

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• TWiS 149: SpaceX, Moon Missions, and Killer Asteroids? - 2024 YR4, ISS Deorbiting, and NASA Budget Cuts

  In this episode of This Week in Space, hosts Rod Pyle and Tariq Malik discuss the latest space news, including a potentially hazardous asteroid, SpaceX's plans to launch and land in the Bahamas, and the ongoing debate surrounding the retirement of the International Space Station. They also touch on NASA's budget cuts, the search for extraterrestrial life, and the development of new radiation protection technology for deep space missions. - Asteroid 2024 YR4: While initially considered a potential threat, the chances of this asteroid impacting Earth have significantly decreased as more data has been collected. Rod and Tariq discuss the changing odds and the importance of tracking near-Earth objects. - NASA budget cuts: The hosts discuss the proposed 20% budget cut for the James Webb Space Telescope and its potential impact on the groundbreaking observatory's operations and scientific output. - Firefly Aerospace's Blue Ghost Moon lander: Launched weeks ago, the lander is now in lunar orbit and scheduled to land on or about March 2nd, carrying 10 experiments to Mare Crisium. With several other lunar missions on the horizon, including those from Intuitive Machines and Japan's iSpace, the hosts discuss the exciting developments in the new lunar exploration era. - SpaceX in the Bahamas: Elon Musk's company is in talks with the Bahamian government about launching and landing rights. The hosts speculate on the reasons behind this move and its potential implications for future missions. - The retirement of the ISS: Elon Musk suggests de-orbiting the station as soon as possible and to press on to Mars, while others argue for maintaining it until suitable replacements are ready. - "Stranded" astronauts controversy: The hosts address the recent claims that astronauts Sunny Williams and Butch Wilmore were "stranded" or "abandoned" on the ISS due to political motives. They clarify the situation and express their disappointment with the misleading narrative. - Radiation shielding technology: The development of 3D-printed hydrogels offers a promising solution for protecting astronauts from harmful radiation during deep space missions. The hosts explore the potential applications and benefits of this innovative technology. - Search for Extraterrestrial Life: The COSMIC project, working with the Very Large Array telescope, has been using advanced computer processing to seek out focused radio transmissions that might indicate the presence of alien civilizations. While no signals of interest have been found yet, the search continues, and the project serves as a valuable educational tool for aspiring radio astronomers. - NASA workforce reduction: While NASA has not yet implemented the anticipated workforce reduction, the hosts discuss the potential impact of such cuts on the agency's future and the importance of maintaining a skilled workforce in the face of increasing competition from China. Hosts: Rod Pyle and Tariq Malik 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

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• TWiS 148: Clavius Base - Why Clavius Crater Is the Best Spot for Nasa's Moon Base With Dr. Pascal Lee

  Clavius. The very mention of this vast lunar crater brings to mind spectacular images from "2001: A Space Odyssey"— landing spacecraft, alien monoliths, and more. But more immediately, Clavius may be the ideal place to build our first lunar base, and Dr. Pascal Lee rejoins us to explain why. Notably, Clavius is not on NASA's dance card as a first-siting consideration but Lee thinks it should be, for many reasons, including interesting lunar geology, possible sites for permanent settlements—including lava tubes, excellent prospects for transportation infrastructure, and much more. Join us for a fascinating look at the near future at Clavius Base! Headlines: • Blue Origin lays off 10% of its workforce to shift focus to operational flights and Moon lander • NASA alters Vera Rubin Observatory biography of namesake astronomer Vera Rubin to remove mentions of her advocacy for women in science, amid the Trump administration push to eliminate DEI references • Beautiful iridescent clouds captured on Mars by the Curiosity rover • Northern Lights visible on Valentine's Day due to coronal hole triggering geomagnetic storm Main Topic - Lunar Base at Crater Clavius: • Dr. Pascal Lee proposes establishing a lunar base at the crater Clavius near the Moon's south pole • Clavius offers key advantages: on the near side of the Moon, geologically diverse, open flat spaces for landing/expansion, access to pits and lava tubes • Clavius is better suited for a long-term base compared to the harsh environment right at the lunar south pole • The base would be powered by nuclear reactors; solar considered insufficient for larger bases • Water ice mining at lunar poles may not be economically viable; estimates require excavating huge amounts of regolith to obtain useful quantities of water • NASA seems to have concerns about south pole plans; the decision was likely driven more by geopolitical factors than science or engineering • Building a base at Clavius could inspire the public as life imitates art, echoing the site's depiction in the film 2001: A Space Odyssey • Desert locations on Earth like Atacama or Sahara could provide ideal locations for field testing lunar mobility systems Hosts: Rod Pyle and Tariq Malik Guest: Pascal Lee 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

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• TWiS 147: Not As They Seem - Mick West on UFOs, Conspiracy Theories, and Pseudoscience

  In this episode, we talk to Mick West, a passionate conspiracy debunker who, rather uniquely, proceeds with kindness and empathy as he unravels some of the key pseudoscience of our time. Of particular interest to us is the spate of relatively recent videos of UFOs/UAPs from the US Navy, among other sources. He's got a lot to say and took a deep dive into the phenomenon with us. Buckle up and share the weird and sometimes wacky world of "Not As They Seem!" with us! Get "Escaping the Rabbit Hole" on Amazon (Affiliate Link): https://amzn.to/42HqpK1 Headlines: • SpaceX's Dragon spacecraft to bring home astronauts Butch Wilmore and Sunita Williams earlier than planned, swapping with the Axiom Space 4 mission's Endurance Dragon capsule • Asteroid 2024 YR4's chances of impacting Earth in 2032 slightly increase to a 2.2% chance of hitting our planet on December 22, 2032, according to the European Space Agency. The risk assessment has increased from a chance of 1.2% over the last week due to new observations, but there is still a 97.7% chance it will miss our planet • Putin replaces Roscosmos chief Yuri Borisov with 37-year-old Dmitry Bakunov, former deputy transport minister • Astrolab's FLEX Lunar Innovation Platform (FLIP) rover to replace NASA's canceled VIPER rover, hitching a ride on Griffin's lander to the Moon • The Trump administration's first weeks in office bring significant changes to NASA and the space industry, with acting administrator Janet Petro set to address the future of the agency Main Topic - UFOs/UAPs, Conspiracy Theories, and Critical Thinking: • Mick West's background in video game programming and his transition to debunking conspiracy theories • The importance of contrail science and debunking the chemtrails conspiracy theory • Psychological factors that lead people to believe in conspiracy theories, such as the need for uniqueness and the appeal of simple explanations • The role of social media and non-expert influencers in shaping public opinion on UFOs and other fringe topics • Analyzing recent UFO videos and the challenges of interpreting visual data without proper context or expertise • The potential impact of the Trump administration on UFO disclosure and the appointment of a "UFO/UAP czar" • Examining the claims of UFO whistleblowers like Luis Elizondo and David Grusch, and the lack of concrete evidence to support their assertions • The shift towards a distrust of science and academia, and the potential return to a belief in supernatural explanations • Debunking moon landing conspiracy theories and the importance of considering evidence from multiple sources • The potential consequences of hidden technology and the allure of "free energy" conspiracy theories • Mick West's book, "Escaping the Rabbit Hole: How to Debunk Conspiracy Theories Using Facts, Logic, and Respect," and its guidance on communicating with conspiracy theorists Hosts: Rod Pyle and Tariq Malik Guest: Mick West 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

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