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This Week in Space (Audio)

TWiT
This Week in Space (Audio)
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65 episodes

  • This Week in Space (Audio)

    TWiS 220: First on Mars - The 50th Anniversary of Viking 1

    2026/07/24 | 1h 16 mins.
    This week, we cover how Starship Flight 13 finally prepares to launch amid a legal battle over SpaceX's proposed land swap at Starbase, plus a Chinese Long March 3B rocket gets struck by lightning during liftoff, yet still delivers its satellite safely. Then, guests Dr. Pascal Lee and astrobiologist Dr. Penny Boston join the show to mark the 50th anniversary of Viking 1's landing on Mars and revisit the mission's groundbreaking life-detection experiments and the decades-long controversy over what they actually found. The conversation traces Mars exploration from the earliest Mariner flybys through Viking's ambiguous, still-debated results—later explained by perchlorates in the Martian soil—and the fierce scientific rivalry the findings sparked. Join us!



    Headlines:

    SpaceX Starship Flight 13 faces engine and weather delays ahead of launch

    SpaceX land swap proposal sparks conservation group lawsuit over Rio Grande Valley wildlife preserve

    Chinese Long March rocket survives dramatic lightning strike during launch

    Main Topic: 50th Anniversary of Viking Mars Landers—Search for Life on Mars

    The evolution of Mars exploration from telescopes to Viking lander

    Early Mars missions: Mariner flybys, Soviet attempts, and breakthroughs in orbital imaging

    Viking 1 and 2: Ambitious design, life-detection experiments, and landing impact

    Mixed public and scientific reactions to Viking's first iconic Mars surface images

    Technical overview of the Viking biology experiments and their controversial results

    The unresolved debate: Did Viking detect life or chemical reactions on Mars?

    Personal accounts of key scientists, scientific disputes, and the "Wolf Trap" experiment that never flew

    Lessons from Viking: Limitations of technology, extremophile discoveries, and shifting strategies for detecting life

    The scientific case for seeking life in Martian caves and subsurface environments

    Critique of current and future Mars missions: Perseverance rover findings and value of Mars Sample Return

    Exploring planetary protection, contamination risks, and the challenges of certifying Martian samples=

    Key takeaways for future missions—bold searches, new technologies, and the ongoing quest for answers

    Hosts: Rod Pyle and Tariq Malik

    Guests: Pascal Lee and Dr. Penelope Boston

    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 audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

    Sponsor:
    rippling.ai/twis
  • This Week in Space (Audio)

    TWiS 219: SpaceX Goes to War! - And Other Space Headlines

    2026/07/17 | 1h 13 mins.
    This week we're jumping into the space headlines for the past few weeks. It's been busy, and some exciting things are happening! A couple of companies are moving into the space solar power arena--something we've long advocated--and that's welcome progress. Starship is set to fly Starship test number 13, and a lot is riding on this--the system is overdue for some proof of concept to keep up with NASA's HLS contract. An exoplanet spotted a decade ago has shown signs of a potentially habitable atmosphere; there are landslides--big ones--on Pluto, and evidence of "space candy" sugars in an interstellar cloud are in the news. Finally, SpaceX is doubling down on their big defense contracts with a well-funded US Space Force. Join us for all the latest!



    Headlines:

    SpaceX Starship Flight 13 Launch Aborted Due to Engine Issue

    Meteorite Crashes Into New Jersey, Preserved Sample Fuels Origins of Life Research

    Discovery of Atmosphere Around Habitable-Zone Exoplanet LHS 1140 b

    NASA Moon Tree Planted After Artemis 1 Mission

    Reflect Orbital to Launch Mirrors in Space, Sparking Astronomer Backlash

    Landslides Found on Pluto Could Bury Entire Cities

    Rare Sugar Found in Interstellar Cloud Hints at Building Blocks of Life

    SpaceX's Growing Military Launch Contracts and Pentagon Ties

    Space Development Agency's Expanding Satellite Constellation for Space Force

    Starship's Dual Focus: NASA Moon Landings vs. Mars and Satellite Deployment

    Artemis 3 Updates: New Renderings, Docking Plans, and Starlink HD Laser Payloads

    Defense Innovation Unit's Push for Space-Based Power Beaming Technology

    Pulse Space and Laser-Based Satellite Power and Communication

    New Satellite Concept to Detect Nuclear Devices in Orbit Amid Global Security Concerns

    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 audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

    Sponsors:
    blackhat.com/us-26 and use code TWIT

    ethos.com/twis
  • This Week in Space (Audio)

    TWiS 218: Which Way to the Moonbase? - With Dr. Pascal Lee

    2026/07/10 | 1h 10 mins.
    We've been hearing a lot about NASA's new moonbase plans, and they are ambitious. Starting with Artemis V (so far), the US plans to begin preparations for a permanent base situated in the south polar regions of the moon. Details are somewhat fluid, but one thing stands out: the poles are likely to be the most challenging places to set up shop in an already hostile environment. Planetary scientist Dr. Pascal Lee joins us to discuss moonbase siting options and why the poles may not be the best choice at first.



    Headlines:

    China Demonstrates Impressive Rocket Landing and Catch Mechanism

    New Horizons Probe Awakens to Transmit Deep Space Data

    Wally Funk, Last of the "Mercury 13," Passes Away

    West Coast Rocket Launch Alert: SpaceX Falcon 9 Visual Spectacle

    Main Topic: Moon Base Strategy and Location Debate

    History and Evolution of U.S. Moon Base Plans

    NASA's New Multi-Phase Moon Base Timeline and Missions

    Strategic and Logistical Challenges of South Pole Moon Bases

    Arguments for a Centralized, Benign Location for Moon Infrastructure

    Commercial and International Partnership Models for Lunar Operations

    Role of Robotics and AI in Moon Exploration and Prospecting

    Lessons from Antarctic Base Logistics Applied to the Moon

    Potential for Tourism and Commercial Development on the Lunar Surface

    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 audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

    Sponsors:
    blackhat.com/us-26 and use code TWIT

    rippling.ai/twis

    threatlocker.com/twit
  • This Week in Space (Audio)

    TWiS 217: America in Space - 250 Years of Bold Firsts & Our Favorite Missions!

    2026/07/03 | 1h 18 mins.
    Since 1958, the United States has been part of the spaceflight adventure, and since the mid-1960s has led in just about any category that counts. In this episode, we discuss the progression of American space efforts, review which flights launched or landed on July 4, and relive some of our very favorite US space missions of all time!

    "Headlines:

    • NASA's Swift Boost Mission Aims to Rescue Swift Space Telescope

    • Astronomer Avi Loeb Tapped to Chair White House UAP Panel

    • Celebrating 30 Years of the Film Independence Day

    Main Topic: 250 Years of America in Space

    • American Flags Across the Solar System

    • Origins of the Space Age: Operation Paperclip and the V2 Legacy

    • Explorer 1 and Early U.S. Satellite Achievements

    • Mariner and Viking Missions: Mars Exploration Milestones

    • Key American Firsts in Human Spaceflight

    • Apollo Landings and Moonwalk Milestones

    • Skylab and Its Legacy as America's First Space Station

    • The Rise of Reusable Rockets: Space Shuttle, Blue Origin, and SpaceX

    • Private Spaceflight and Tourism: From Dennis Tito to Jared Isaacman

    • Curiosity, Pathfinder, and Other Mars Rovers as Iconic U.S. Achievements

    • Reflections on Favorite Missions and the Future of U.S. Space Leadership"

    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 audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

    Sponsors:
    blackhat.com/us-26 and use code TWIT

    helixsleep.com/space
  • This Week in Space (Audio)

    TWiS 216: Dark Matter Intelligence - With Physicist Dr. Daniel Whiteson

    2026/06/26 | 1h 10 mins.
    We've had endless conversations about aliens and first contact--but what if a conversation with other intelligences is beyond our scope? Dr. Daniel Whiteson, particle physicist at CERN's Large Hadron Collider and professor at UC Irvine, joins us to explore less conventional thoughts on first contact. We look at the challenges of communicating with extraterrestrial intelligences, potential difficulties of communicating via non-terrestrial mathematics and physics, and the possibility that extraterrestrials might actually be terrestrial... but existing as denizens of the dark energy universe. One might be sitting in your lap right now! Join us for the far-ranging discussion.

    Headlines:

    Boeing's Troubled Starliner Spacecraft Faces Further Setbacks and Delays

    NASA Perseverance Rover Finds Promising Clues of Ancient Life on Mars

    NASA Space Telescope Faces Fiery Descent, Mission Planned to Save It

    Main Topic: Dark Matter, Particle Physics, and the Search for Extraterrestrial Intelligence

    UC Irvine's Dr. Daniel Whiteson Discusses Path into Space Science and Particle Physics

    Exploring Nontraditional Signals for Alien Communication Beyond Radio Waves

    The Mystery of Ultra-High Energy Particles and Speculation on Artificial Cosmic Rays

    Challenges of Detecting, Interpreting, and Interacting with Alien Intelligence

    Implications of Dark Matter for Hidden Civilizations and Parallel Existence

    Complexities in Communicating with Truly Alien Life and Human-Centric Scientific Assumptions

    Hosts: Rod Pyle and Tariq Malik

    Guest: Daniel Whiteson

    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 audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit
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About This Week in Space (Audio)
The new space age is upon us, and This Week in Space leaves no topic untouched. Every Friday, join Editor-in-Chief of Ad Astra magazine, Rod Pyle and Managing Editor of Space.com, Tariq Malik as they explore everything related to the cosmos. You can join Club TWiT for $10 per month and get ad-free audio and video feeds for all our shows plus everything else the club offers...or get just this podcast ad-free for $5 per month. New episodes posted every Friday.
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