Épisodes

  • NASA Artemis Overhaul, Vulcan Centaur Grounded, and the Milky Way’s True Origin Story
    Mar 1 2026
    NASA rewrites the Artemis roadmap, the Space Force grounds Vulcan Centaur, astronomers peer back 11 billion years to the universe's most extraordinary construction site, water bears reveal surprising secrets about Martian soil, NASA passes a key milestone in extracting oxygen from lunar regolith, and ancient stellar lighthouses rewrite the Milky Way's origin story. Plus — six planets in tonight's sky. 📰 STORIES THIS EPISODE 1 — NASA Overhauls the Artemis Programme NASA Administrator Jared Isaacman announced a sweeping restructure of the Artemis Moon programme on Friday 27 February. The headline change: Artemis III will no longer attempt a crewed lunar landing. Instead it has been redesigned as a low Earth orbit test flight in 2027, where astronauts will dock with the SpaceX Starship Human Landing System and potentially Blue Origin's Blue Moon lander, testing suits, life support and rendezvous procedures before anyone attempts a surface landing. The Block 1B SLS upgrade has been scrapped, vehicle configuration standardised, and NASA is targeting annual Moon landings from Artemis IV and V in 2028, with at least one surface landing per year thereafter. Isaacman invoked Apollo's step-by-step approach as his model — pointing out the programme was essentially jumping from Apollo 8 to the Moon landing without the intervening tests. The Lunar Gateway space station was notably absent from the announcement. Artemis II — the crewed flight around the Moon — remains on track for no earlier than 1 April 2026 pending resolution of a helium pressurisation issue. 2 — Space Force Grounds Vulcan Centaur The U.S. Space Force has placed an indefinite hold on all national security launches aboard ULA's Vulcan Centaur rocket following a repeat solid rocket booster anomaly during the USSF-87 mission on 12 February — the rocket's fourth flight. A booster nozzle appeared to separate during ascent, mirroring an incident on Vulcan's second certification flight in October 2024. The payloads were successfully delivered, but Space Force Col. Eric Zarybnisky confirmed at the AFA Warfare Symposium that no further Vulcan national security missions will fly until the issue is fully resolved. With over a dozen military launches manifested for 2026, the grounding threatens significant disruption to the Pentagon's launch schedule. 3 — The Universe's Most Extraordinary Construction Site Astronomers using the Very Large Array and ALMA telescope have discovered J0846 — the first strongly gravitationally lensed protocluster core ever found. A foreground galaxy cluster is acting as a cosmic zoom lens, magnifying a cluster of at least 11 furiously star-forming galaxies more than 11 billion light years away — all crammed into a region smaller than the distance between the Milky Way and Andromeda. Completely invisible to optical telescopes due to dense dust shrouding, ALMA's detection of cold dust and gas revealed the extraordinary scene. Lead researcher Nicholas Foo (Arizona State University) describes it as catching a galaxy cluster in the very first chapter of its life. 4 — Could Mars Soil Actually Block Earth Microbes? A Penn State-led international team published findings in the International Journal of Astrobiology showing that simulated Martian regolith significantly suppresses tardigrade (water bear) activity — one of the toughest creatures on Earth. Critically, rinsing the regolith with water largely reversed the harmful effect, suggesting the culprit is a water-soluble compound — possibly salts or perchlorates detected by previous Mars missions. The dual implication: Martian soil may naturally protect the Red Planet from Earth contamination, and could potentially be treated to support plant growth in future habitats. 5 — Extracting Oxygen from Lunar Soil — A Major Milestone NASA's Carbothermal Reduction Demonstration (CaRD) project has passed a key integrated prototype test aboard the ISS, confirming that concentrated solar energy can drive a chemical reaction in simulated lunar regolith to produce carbon monoxide — which can then be converted into breathable oxygen. Lunar regolith is approximately 45% oxygen by mass, locked in silicate minerals. The integrated system combines hardware from Sierra Space, NASA Glenn, Composite Mirror Applications, and Kennedy Space Center. Beyond breathing air, the process could produce rocket propellant in-situ — directly relevant to this week's Artemis restructuring and the goal of a permanent lunar presence. 6 — Ancient Stellar Lighthouses Rewrite the Milky Way's Origin Story Using the largest-ever catalogue of RR Lyrae variable stars — ancient pulsating 'cosmic lighthouses' over 10 billion years old — combined with ESA's Gaia satellite data, a large international team has found that the Milky Way's structural layers (halo, thick disk, thin disk) all formed at roughly the same early epoch, not sequentially as long assumed. The layers differ in chemistry, ...
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    22 min
  • Dying Star, Skull Nebulae, and a Blood Moon
    Feb 27 2026

    Episode 50 of Season 5! Today Anna and Avery bring you six unmissable space stories: a star 1,540 times the size of our Sun transforming into a rare yellow hypergiant in real time; SpaceX's Dragon CRS-33 capsule completing a historic ISS-boosting mission and splashing down this morning; the James Webb Space Telescope revealing the haunting 'Exposed Cranium' nebula in unprecedented detail; a total lunar eclipse blood moon arriving this Tuesday (March 3) — the last until 2028/29; groundbreaking research showing Jupiter's icy moons may have been born with life's molecular building blocks embedded in them; and NASA shaking up its human spaceflight leadership following a damning report on the Boeing Starliner Crew Flight Test. STORIES IN THIS EPISODE: • (00:00) Intro & Episode 50 Milestone • (02:00) WOH G64: Red supergiant transforms into yellow hypergiant — supernova imminent? • (06:00) SpaceX CRS-33 Dragon splashes down after historic six-month ISS-boosting mission • (09:00) Webb's Exposed Cranium Nebula: A dying star's brain-shaped farewell • (12:00) Blood Moon Alert: Total lunar eclipse Tuesday March 3 — where to watch • (14:30) Jupiter's moons born with life's building blocks — new research • (17:00) NASA leadership shakeup: Starliner fallout claims two senior figures • (19:30) Outro FIND US: • Website: astronomydaily.io • Social: @AstroDailyPod on all major platforms • Part of the Bitesz.com Podcast Network

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    22 min
  • Martian Gullies and Inside-Out Planets: Discoveries from the Cosmos
    Feb 27 2026

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    SpaceTime with Stuart Gary Gary - Series 29 Episode 25

    In this episode of SpaceTime , we explore the intriguing mysteries of Mars' gullies, uncover a unique inside-out planetary system, and witness the inaugural launch of Europe's most powerful rocket.

    Mysterious Martian Gullies Explained

    Scientists have made significant strides in understanding the enigmatic gullies on Mars, previously thought to be shaped by unknown forces. A new study published in Geophysical Research Letters reveals that blocks of frozen carbon dioxide are the culprits behind these formations. When the Martian winter sets in, CO2 ice accumulates and, upon warming, sublimates, creating gas pressure that carves deep gullies in the Martian surface. This groundbreaking phenomenon, likened to the sandworms of Dune, showcases a unique geological process not observed on Earth.

    Inside-Out Planetary System Discovery

    Astronomers have identified a remarkable new planetary system, catalogued as LHS 1903, that defies conventional models of planetary formation. Unlike our solar system, which features rocky planets close to the star and gas giants further out, LHS 1903 has a small rocky planet orbiting outside of two gas giants. This discovery, detailed in Science , suggests that this rocky world may have formed in a gas-depleted environment, challenging existing theories about how planets evolve and raising questions about the nature of planetary systems.

    Europe's Powerful Rocket Launch

    The European Space Agency has successfully launched the Ariane 64, its most powerful rocket to date, from the Kourou Spaceport in French Guiana. This inaugural mission, VA267, carried 32 satellites into orbit for Amazon's LEO network, marking a significant milestone as the largest number of satellites ever launched by an Ariane rocket. With plans for an average of 10 launches per year, the Ariane 64 is set to play a crucial role in the future of satellite deployment.

    www.spacetimewithstuartgary.com (https://www.spacetimewithstuartgary.com/)

    ✍️ Episode References

    Geophysical Research Letters, Science

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    38 min
  • ”Jupiter’s not quite as big as we thought.” | Space Nuts: Astronomy Insights & Cosmic Discoveries
    Feb 27 2026

    Tiny Jupiter, Unusual Comet Behavior, and Gravitational Lensing

    In this exciting episode of Space Nuts , hosts Andrew Dunkley and Professor Fred Watson delve into some intriguing astronomical discoveries. They discuss the surprising news about Jupiter's size, the strange rotation of Comet 41P, and the fascinating concept of utilizing solar gravitational lensing for deep space exploration.

    Episode Highlights:

    - Jupiter's Revised Size: The duo explores new measurements from NASA's Juno mission that indicate Jupiter is slightly smaller than previously thought. They discuss the implications of these findings on our understanding of the gas giant's internal structure and atmospheric dynamics.

    - The Mystery of Comet 41P: Andrew and Fred reveal the unusual behavior of Comet 41P, which has experienced a significant slowdown in its rotation, potentially reversing its spin direction. They analyze the possible causes of this phenomenon and what it could mean for the comet's future.

    - Solar Gravitational Lensing: The hosts dive into the concept of using the Sun's gravitational field as a lens to observe distant exoplanets. They discuss the challenges of reaching the solar gravitational lens focal point and the technologies that might one day make such missions feasible.

    For more Space Nuts, including our continuously updating newsfeed and to listen to all our episodes, visit our website. (https://www.spacenutspodcast.com/) Follow us on social media at SpaceNutsPod on Facebook, Instagram, and more. We love engaging with our community, so be sure to drop us a message or comment on your favorite platform.

    If you’d like to help support Space Nuts and join our growing family of insiders for commercial-free episodes and more, visit spacenutspodcast.com/about (https://www.spacenutspodcast.com/about) .

    Stay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.

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    Episode link: https://play.headliner.app/episode/31901861?utm_source=youtube

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    33 min
  • Six Planets Tonight — And a Galaxy-Sized Mystery Solved ⭐
    Feb 26 2026

    Astronomy Daily | S05E49 | February 26, 2026 Six Planets, a Surprise in the Milky Way, and the First ISS Medical Evacuation Revealed Tonight the Moon sits right next to Jupiter in what is the visual highlight of the February six-planet alignment. Meanwhile, astronomers have made a jaw-dropping discovery about our galaxy’s magnetic field, NASA has named the astronaut at the centre of last month’s historic ISS medical evacuation, and a hypersonic scramjet launch has been scrubbed. All that and more in today’s episode. IN THIS EPISODE • SKYWATCHING — Moon-Jupiter conjunction tonight: the six-planet alignment (Mercury, Venus, Jupiter, Saturn, Uranus, Neptune) is peaking right now, with Jupiter blazing beside the waxing Moon after sunset. The Blood Moon total lunar eclipse arrives March 3. • DEEP SPACE — The world’s largest radio telescope array has made new chemical discoveries in the turbulent heart of the Milky Way around Sagittarius A*, our galaxy’s supermassive black hole. • ARTEMIS UPDATE — NASA’s SLS rocket has returned to the Vehicle Assembly Building for repairs; early April is now the earliest realistic launch window for the crewed lunar flyby. • ISS — NASA has named the astronaut who required the first-ever medical evacuation from the International Space Station, following last month’s early return of Crew-11. • SCIENCE — A groundbreaking new map of the Milky Way’s magnetic field reveals an unexpected diagonal reversal in the Sagittarius Arm — a discovery that prompted an OMG moment for the lead researcher. • LAUNCH UPDATE — Rocket Lab’s HASTE ‘That’s Not a Knife’ hypersonic mission carrying an Australian hydrogen scramjet demonstrator has been scrubbed; no new date yet. FIND US Website: astronomydaily.io | Social: @AstroDailyPod | Part of the Bitesz.com Podcast Network

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    13 min
  • The Birth of a Black Hole and Mars’ New Navigation
    Feb 26 2026

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    SpaceTime with Stuart Gary Gary - Series 29 Episode 24

    In this episode of SpaceTime , we uncover astonishing discoveries about the birth of black holes, a revolutionary Martian navigation system, and the arrival of NASA's SpaceX Crew 12 at the International Space Station.

    The Birth of a Black Hole: A New Perspective

    Astronomers have made a groundbreaking discovery by observing a star in the Andromeda Galaxy collapsing into a black hole without the expected supernova explosion. The star, catalogued as M31 2014 DS1, was seen glowing brightly in infrared light before fading away, leaving behind a dust shell. This event, which had been anticipated for decades, suggests that massive stars may collapse directly into black holes, challenging long-held assumptions about stellar deaths. The findings, published in the journal Science, provide new insights into the processes that govern black hole formation and indicate that such direct collapses may be more common than previously thought.

    NASA's New Martian Navigation System

    NASA has introduced an innovative navigation system for its Perseverance rover, allowing it to determine its location on Mars with remarkable precision—within 25 centimeters. The new technology, called Mars Global Localization, enables the rover to autonomously compare panoramic images with orbital terrain maps, eliminating the need for Earth-based assistance. This advancement significantly enhances the rover's ability to explore the Martian surface independently, paving the way for more extensive scientific investigations.

    SpaceX Crew 12 Arrives at the ISS

    NASA's SpaceX Crew 12 has successfully docked with the International Space Station, restoring the crew complement to seven members. The mission includes a diverse crew of two Americans, a Russian, and a French astronaut, who will conduct approximately 250 scientific experiments in orbit. Additionally, NASA has approved a sixth private mission to the ISS, slated for next year, which aims to support new research initiatives and infrastructure development for future human spaceflight missions.

    www.spacetimewithstuartgary.com (https://www.spacetimewithstuartgary.com/)

    ✍️ Episode References

    Journal Science, NASA Reports

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    23 min
  • Webb Makes Astronomy History | Update - NASA Rolls Artemis Back to the Hangar | Is There Life on...
    Feb 25 2026

    NASA's Artemis II moon rocket begins its rollback to the Vehicle Assembly Building today as a helium flow issue kills the March launch window — and the crew's unannounced presence at Trump's State of the Union adds a fascinating new dimension. Plus: James Webb achieves an astronomical first by identifying a supernova's progenitor star that was invisible to every other telescope; the case for life on exoplanet K2-18b keeps building; the sun goes spotless for the first time since 2022; China's Shenzhou-20 astronauts reveal gripping new details about last year's space debris emergency; and the U.S. Postal Service turns Webb's greatest hits into stamps. Full episode rundown at astronomydaily.io

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    15 min
  • Slow Crawl, Fast Comet
    Feb 24 2026

    Today on Astronomy Daily: NASA's Artemis II mission is rolling back to the Vehicle Assembly Building today after a helium flow issue dashed hopes of a March launch. We cover the latest on what went wrong, what it means for the April window, and what happens next. We also have five more stories to get through: Perseverance just gained the ability to locate itself on Mars with GPS-like precision — no Earth assistance required. Scientists have published a daring plan to intercept interstellar comet 3I/ATLAS using a solar slingshot manoeuvre, with a launch in 2035 and a 50-year journey to follow. China's mysterious Shenlong space plane is back in orbit on its fourth mission, and we still know almost nothing about it. We run through this week's packed launch schedule — including Rocket Lab's hypersonic scramjet test flight happening today, and Firefly Aerospace's return to flight on Friday. And we close with a genuinely beautiful piece of science: researchers have used supercomputers to solve a 50-year-old mystery about how elements move inside red giant stars. In This Episode 00:00 — Introduction 01:30 — Story 1: Artemis II rollback — the latest 05:30 — Story 2: Perseverance gets GPS on Mars 09:00 — Story 3: The 50-year mission to chase 3I/ATLAS 12:30 — Story 4: China's Shenlong space plane — Mission 4 15:00 — Story 5: This week's launch schedule 17:30 — Story 6: Supercomputers solve the red giant mystery 19:30 — Outro Find Us Website: astronomydaily.io Social: @AstroDailyPod Network: Bitesz.com Podcast Network

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    21 min