Space News Today

For fifty years the story has been that the Moon assembled slowly out of a disc of debris. New simulations from Southwest Research Institute add one thing everybody left out — the strength of rock — and get an intact Moon in about five hours. Plus eight black holes that outgrew their galaxies, two massive stars that fell past each other and got caught, Dragonfly's Titan landing site gets a name, and today's daylight occultation of Jupiter. Links & sources Southwest Research Institute — SwRI-led modeling identifies new scenarios for Moon formation — https://www.swri.org/newsroom/press-releases/swri-led-modeling-identifies-new-scenarios-moon-formation Denton, Canup, Asphaug et al. — The Astrophysical Journal Letters (DOI) — https://doi.org/10.3847/2041-8213/ae91e9 Space.com — Earth's moon could have formed in just 5 hours after giant impact — https://www.space.com/astronomy/moon/earths-moon-could-have-formed-in-just-5-hours-after-giant-impact Buchner et al. — A large population of overmassive black hole quasars at z=0.3–0.8 revealed by eROSITA, A&A 713, A11 — https://www.aanda.org/articles/aa/full_html/2026/09/aa59356-26/aa59356-26.html Astronomy & Astrophysics — 2026 press releases — https://www.aanda.org/2026-press-releases Zhang, Garay et al. — An eccentric massive protobinary assembled via a core-merger parabolic encounter, Nature Astronomy — https://www.nature.com/natastron/articles?year=2026 Universidad de Chile coverage of the IRAS 07299-1651 result — https://www.radiofestival.cl/la-danza-nupcial-de-estrellas-masivas-astronomo-de-la-universidad-de-chile-participa-de-historico-hallazgo/ NASA / APL — Dragonfly Gets Wired Up While Titan Landing Area Is Named — https://science.nasa.gov/blogs/dragonfly/2026/09/02/nasas-dragonfly-gets-wired-up-while-titan-landing-area-is-named/ Sky & Telescope — Tuesday's daytime Jupiter occultation, a warm-up for the 'big one' — https://skyandtelescope.org/astronomy-news/tuesdays-daytime-jupiter-occultation-a-warm-up-for-the-big-one/ Universe Today — September's lunar occultations: circumstances and visibility — https://www.universetoday.com/articles/penultimate-lunar-occultations-inbound-for-jupiter-venus-and-more-in-september NASA — What's Up: September 2026 skywatching tips — https://science.nasa.gov/solar-system/skywatching/whats-up-september-2026-skywatching-tips-from-nasa/ EarthSky — Visible planets and night sky guide for September — https://earthsky.org/astronomy-essentials/visible-planets-tonight-mars-jupiter-venus-saturn-mercury/ Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support (https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Sponsor Details: Ensure your online privacy by using NordVPN . To get our special listener deal and save a lot of money, visit You'll be glad you did! Get the best secure and private email on the planet. Stop your Government, google and who knows who else spying on every email you write. Do what we did and use ProtonMail. They beleive in privacy and there are no ads in their business model...yet they still provide a free forever service. Check them out and get out special deal at www.astronomydaily.io/protonmail (https://www.astronomydaily.io/protonmail) Become a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click Here (https://www.spreaker.com/podcast/astronomy-daily-space-news-updates--5648921/support) This episode includes AI-generated content. Episode link: https://play.headliner.app/episode/35157295?utm_source=youtube

A German rocket lifted off from an Arctic island on Saturday and became the first vehicle ever to reach orbit from Western European soil. Plus: the gaps in stellar streams may not be dark matter after all, two white dwarfs circling every 374 seconds in the far southern sky, peptides that fold in concentrated sulfuric acid, and what Katalyst's LINK is actually doing next to Swift. Both-hemispheres skywatch, and a serious safety warning for tomorrow's daylight Jupiter occultation. Links & sources · Isar Aerospace — mission updates — https://isaraerospace.com/mission-updates-overview · ESA — Spectrum launches to orbit (imagery) — https://www.esa.int/ESA_Multimedia/Images/2026/09/Spectrum_launches_to_orbit · NASASpaceflight — Isar 'Onward and Upward' — https://www.nasaspaceflight.com/2026/09/isar-onward-and-upward/ · Space.com — Private German rocket makes history — https://www.space.com/space-exploration/launches-spacecraft/isar-aerospace-second-launch-norway-andoya-spaceport-spectrum-rocket · Space.com — Gilmour Space eyes a second orbital attempt — https://www.space.com/space-exploration/launches-spacecraft/australias-gilmour-space-not-going-to-give-up-as-it-eyes-2nd-orbital-launch-attempt-in-2026 · Sky & Telescope — Gaps in stellar streams may be common — https://skyandtelescope.org/astronomy-news/gaps-in-stellar-streams-common-not-sign-dark-matter/ · Arora et al. — Semianalytic modeling of subhalo encounters with thin stellar streams, ApJ — https://iopscience.iop.org/article/10.3847/1538-4357/adf740 · Sharma et al. — Rapid orbital decay in eRASSU J060839.5−704014 (arXiv) — https://arxiv.org/abs/2608.09341 · Maitra et al. — eRASSU J060839.5−704014 discovery paper, A&A (2024) — https://www.aanda.org/articles/aa/ref/2024/03/aa47811-23/aa47811-23.html · MIT News — Peptides can form well-defined structures in Venus-like conditions — https://news.mit.edu/2026/study-peptides-can-form-well-defined-structures-harsh-venus-conditions-0831 · NASA Swift blog — Commercial spacecraft for Swift boost continues tech demo — https://science.nasa.gov/blogs/swift/2026/09/04/commercial-spacecraft-for-nasas-swift-boost-continues-tech-demo/ · NASA Swift blog — LINK spacecraft recovery progressing — https://science.nasa.gov/blogs/swift/2026/08/06/link-spacecraft-recovery-progressing-for-nasas-swift-boost/ · EarthSky — Saturn at opposition, 4 October 2026 — https://earthsky.org/astronomy-essentials/saturn-at-opposition-closest-brightest-best/ · Star Walk — Astronomical events, September 2026 — https://starwalk.space/en/news/night-sky-tonight-september Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support (https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Sponsor Details: Ensure your online privacy by using NordVPN . To get our special listener deal and save a lot of money, visit You'll be glad you did! Get the best secure and private email on the planet. Stop your Government, google and who knows who else spying on every email you write. Do what we did and use ProtonMail. They beleive in privacy and there are no ads in their business model...yet they still provide a free forever service. Check them out and get out special deal at www.astronomydaily.io/protonmail (https://www.astronomydaily.io/protonmail) Become a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click Here (https://www.spreaker.com/podcast/astronomy-daily-space-news-updates--5648921/support) This episode includes AI-generated content. Episode link: https://play.headliner.app/episode/35140777?utm_source=youtube

Space Nuts: Q&A on the Swift Satellite, Redshift, and Hypothetical White Holes In this engaging Q&A edition of Space Nuts , hosts Andrew Dunkley and Professor Fred Watson dive into a myriad of intriguing questions posed by listeners. From the fate of the Swift satellite to the mysteries of redshift and the speculative nature of white holes, this episode covers a wide range of cosmic curiosities. Key topics include: - The fate of the Swift satellite and the challenges faced by the Link mission meant to boost its orbit. - An exploration of redshift and the implications of energy loss in distant light. - Insights into the temperature variations on the Moon and the potential for human habitation beneath its surface. - A thought-provoking discussion on the hypothetical merger of black holes and white holes, and what that could mean for our understanding of the universe. Join Andrew and Fred Watson as they tackle these questions with their signature blend of humour and expertise, providing listeners with a deeper understanding of the cosmos. 00:00 - This is where the audience asks us questions, we scratch our heads 01:20 - Do you always record on the same day and time 02:56 - What are your thoughts on the red dots as seen by James Webb Telescope 06:33 - A spacecraft called Link will boost the decaying orbit of the Swift satellite 14:08 - Is distant light redshifted? What happens to the lost energy 16:18 - Professor Fred Watson discusses Apollo 13 problems in Q and A edition 17:19 - Fenton from Minnesota has a question about the temperature on the moon 23:13 - European astrobiologist working on Roslyn Franklin rover on Mars 26:03 - Fred Watson asks what would happen if a white hole merged with a black hole Become a supporter of this podcast: https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support (https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Episode link: https://play.headliner.app/episode/35136046?utm_source=youtube

Anna and Avery open the Weekend Wrap with a genuine first: South Africa's MeerKAT has detected the 21-centimetre hydrogen signal from four to five billion light years away using radio data alone — no optical galaxy survey propping it up — proving out the technique the Square Kilometre Array will use to measure dark energy. Then the week in review: Roman's coronagraph wakes up, Starship Flight 14 gets a date, Mars turns out to be lopsided inside, BepiColombo lets go, LZ's one unexplained flash, and a centaur caught in the act of becoming a comet. Plus the sky for the week ahead, both hemispheres. Links & sources · University of Manchester — Astronomers use MeerKAT to directly detect faint hydrogen signal from the distant Universe — https://www.manchester.ac.uk/about/news/astronomers-use-meerkat-to-directly-detect-faint-hydrogen-signal-from-the-distant-universe · The Astrophysical Journal Letters — Paul, Wolz, Santos, Chen et al. (paper DOI) — https://doi.org/10.3847/2041-8213/ae808f · American Astronomical Society — release listing — https://aas.org/node/730547 · Phys.org — MeerKAT directly detects faint hydrogen signal from the distant universe — https://phys.org/news/2026-09-meerkat-faint-hydrogen-distant-universe.html · Space.com — Scientists detect signals of hydrogen from billions of years ago — https://www.space.com/astronomy/galaxies/scientists-detect-signals-of-hydrogen-from-billions-of-years-ago-could-this-help-us-map-out-the-universe · Xinhua — MeerKAT in South Africa directly detects faint hydrogen signal from distant universe — https://english.news.cn/africa/20260905/3f6c7164a4404b0a9b79f879b1d31a59/c.html · SKA Observatory — the construction journey (SKA-Mid, Karoo; SKA-Low, Murchison) — https://www.skao.int/en/explore/construction-journey · NASA Science — Roman's planet imager has powered on (1 September 2026) — https://science.nasa.gov/blogs/roman/2026/09/01/nasa-romans-planet-imager-has-powered-on/ · NASA — NASA's dark universe-seeking Nancy Grace Roman Space Telescope launches — https://www.nasa.gov/news-release/nasas-dark-universe-seeking-nancy-grace-roman-space-telescope-launches/ · Next Spaceflight — Starship Flight 14 (NET 15 September 2026, Pad 2, Starbase) — https://nextspaceflight.com/launches/details/8346/ · Tesla Oracle — FCC filing points to Starship Flight 14 on 15 September; Booster 21 33-engine static fire — https://www.teslaoracle.com/2026/09/02/fcc-filing-reveals-starship-flight-14-launch-on-september-15-spacex-conducts-33-engine-static-fire-on-booster-21/ · Nature — Tidal tomography reveals a thermal anomaly beneath Mars's crustal dichotomy (27 August 2026) — https://www.nature.com/articles/s41586-026-10893-x · Phys.org — Thermal anomaly discovered below Mars' south pole — https://phys.org/news/2026-08-thermal-anomaly-mars-south-pole.html · ESA — Latest updates: BepiColombo's arrival at Mercury — https://www.esa.int/Science_Exploration/Space_Science/BepiColombo/Latest_updates_BepiColombo_s_arrival_at_Mercury · ESA — BepiColombo's Mercury arrival begins (full replay) — https://www.esa.int/ESA_Multimedia/Videos/2026/09/BepiColombo_s_Mercury_arrival_begins_-_full_replay · Brown University — LZ experiment sees surprising result in search for dark matter — https://www.brown.edu/news/2026-09-01/lz-dark-matter-results · The LZ Dark Matter Experiment — collaboration site — https://lz.lbl.gov/ · ARC Centre of Excellence for Dark Matter Particle Physics — Stawell Underground Physics Laboratory — https://www.centredarkmatter.org/supl · University of Central Florida — UCF researchers study a centaur transforming into a comet — https://www.ucf.edu/news/ucf-researchers-study-a-centaur-transforming-into-a-comet/ · Phys.org — Saturn encounter may have set distant centaur on path to becoming a comet — https://phys.org/news/2026-09-saturn-encounter-distant-centaur-path.html · Space.com — Scientists watch a comet being born 3 billion miles away — https://www.space.com/astronomy/comets/scientists-watch-a-comet-being-born-3-billion-miles-away · Star Walk — Astronomical events in September 2026 — https://starwalk.space/en/news/night-sky-tonight-september · EarthSky — Venus greatest brilliancy, 18 September 2026 (magnitude −4.8) — https://earthsky.org/astronomy-essentials/venus-brightest-greatest-brilliancy-greatest-illuminated-extent-2/ · EarthSky — Sun news: flares, CMEs and aurora updates — https://earthsky.org/sun/sun-news-activity-solar-flare-cme-aurora-updates/ · Space.com — Night sky September 2026: the best things to see this month — https://www.space.com/stargazing/what-to-see-night-sky-september-2026 Follow us: @AstroDailyPod · astronomydaily.io Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support (https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Sponsor Details: Ensure your online privacy by using NordVPN . To get our special...

Links & sources Brown University — LZ experiment sees surprising result in search for dark matter — https://www.brown.edu/news/2026-09-01/lz-dark-matter-results US Department of Energy — LZ Sees Surprising Result in Search for Dark Matter — https://www.energy.gov/science/articles/lz-sees-surprising-result-search-dark-matter Imperial College London — Dark matter hunt takes unexpected turn after puzzling signal spotted in LZ detector — https://www.imperial.ac.uk/news/articles/natural-sciences/physics/2026/dark-matter-hunt-takes-unexpected-turn-after-puzzling-signal-spotted-in-lz-detector/ TeVPA 2026 — Search for high-energy dark matter interactions with the LUX-ZEPLIN experiment — https://indico-icehap.phys.s.chiba-u.ac.jp/event/3/contributions/471/ The LZ Dark Matter Experiment — collaboration site — https://lz.lbl.gov/ Space.com — Scientists may have detected the 1st direct evidence of dark matter — https://www.space.com/astronomy/dark-universe/scientists-may-have-detected-the-1st-direct-evidence-of-dark-matter ARC Centre of Excellence for Dark Matter Particle Physics — Stawell Underground Physics Laboratory — https://www.centredarkmatter.org/supl SABRE South — dark matter direct-detection experiment — https://www.sabre-experiment.org.au/ Phys.org — Underground lab clears crucial hurdle for dark matter hunt — https://phys.org/news/2026-04-underground-lab-crucial-hurdle-dark.html Space.com — India sends Earth-imaging satellite toward geosynchronous orbit in milestone launch — https://www.space.com/space-exploration/launches-spacecraft/gslv-mark-ii-eos-05-launch-first-indian-geo-earth-observing-satellite Outlook India — 'Successfully and precisely injected': ISRO chairman hails GSLV-F17 launch — https://www.outlookindia.com/national/successfully-and-precisely-injected-isro-chairman-hails-gslv-f17-launch-eos-05-reaches-orbit Business Standard — ISRO launches India's first imaging satellite in geostationary orbit — https://www.business-standard.com/india-news/isro-launches-india-s-first-imaging-satellite-in-geostationary-orbit-126090400054_1.html Space.com — Rocket issues delay 1st-ever private mission to Venus — https://www.space.com/astronomy/venus/rocket-issues-delay-1st-ever-private-mission-to-venus-we-are-awaiting-neutron-readiness Syracuse University — The Spin Behind Fading Black Hole Flares — https://news.syr.edu/2026/09/01/the-spin-behind-fading-black-hole-flares/ arXiv — The Role of Stellar Spin in Repeating Partial Tidal Disruption Events (2606.02692) — https://arxiv.org/abs/2606.02692 NASA Science — What's Up: September 2026 Skywatching Tips — https://science.nasa.gov/solar-system/skywatching/whats-up-september-2026-skywatching-tips-from-nasa/ Universe Today — Lunar occultations of Jupiter, Venus and more in September — https://www.universetoday.com/articles/penultimate-lunar-occultations-inbound-for-jupiter-venus-and-more-in-september In-The-Sky.org — Lunar occultation of Jupiter, 8 September 2026 — https://in-the-sky.org/news.php?id=20260908_16_100 EarthSky — Sun news: flare, CME and aurora updates — https://earthsky.org/sun/sun-news-activity-solar-flare-cme-aurora-updates/ Space.com — Night sky September 2026: the best things to see this month — https://www.space.com/stargazing/what-to-see-night-sky-september-2026 Follow us: @AstroDailyPod · astronomydaily.io Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support (https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Sponsor Details: Ensure your online privacy by using NordVPN . To get our special listener deal and save a lot of money, visit You'll be glad you did! Get the best secure and private email on the planet. Stop your Government, google and who knows who else spying on every email you write. Do what we did and use ProtonMail. They beleive in privacy and there are no ads in their business model...yet they still provide a free forever service. Check them out and get out special deal at www.astronomydaily.io/protonmail (https://www.astronomydaily.io/protonmail) Become a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click Here (https://www.spreaker.com/podcast/astronomy-daily-space-news-updates--5648921/support) This episode includes AI-generated content. Episode link: https://play.headliner.app/episode/35104116?utm_source=youtube

SpaceTime Series 29 Episode 106 The most distant Blazar ever seen Astronomers have detected the most distant blazar ever recorded. The blazar -- catalogued as OP 313 was detected some 8 billion light years away. Did the motion of an ocean carve Enceladus's tiger stripes? A new study suggests the iconic tiger stripes at the south pole of the Saturnian ice moon Enceladus may have been formed by ocean waves. SpaceX to build the world’s biggest space port in Louisiana SpaceX boss Elon Musk has announced plans to build the world’s largest spaceport in the Louisiana wetlands on the Gulf Coast 185 kilometres west of New Orleans. The Science Report It seems most girls prefer lovers to fighters at least in non-human animals. Scientists discover a type of brain activity that’s 'tagging' priority information to remember later. Discovery of the fossilized remains of a giant crocodile that once dominated the food chain. The trend for retro phones could mean people want to distance themselves from their smartphones. Skeptics guide to beating up psychic stories. Our Guests This Week Professor Paulo de Souza from Edith Cowan University Bryan Butler from the National Radio Astronomy Observatory Our regular guests: Alex Zaharov-Reutt from techadvice.life Tim Mendham from Australian Skeptics 🌏 Get Our Exclusive NordVPN deal here ➼ www.bitesz.com/nordvpn (http://www.bitesz.com/nordvpn) . The discounts and bonuses are incredible! And it’s risk-free with Nord’s 30-day money-back guarantee! ✌ If you’d like to support the podcast and gain access to bonus content by becoming a SpaceTime crew member, you can do just that through The Big Bang editions on Patreon, Spotify and Apple Podcasts. Details on the Support page on our website https://www.bitesz.com/show/spacetime/support/ (https://www.bitesz.com/show/spacetime/support/) Episode link: https://play.headliner.app/episode/35099081?utm_source=youtube

Anna and Avery cover BepiColombo's arrival at Mercury beginning today, as the ESA/JAXA mission jettisons the transfer module that has carried it for nearly eight years and nine planetary flybys. Plus: NASA awards Blue Origin a $700 million contract to build a dedicated Mars communications orbiter, Hubble confirms a brand-new ten-sided cloud pattern at Saturn's south pole — first spotted by amateur astronomers, one of them in outback New South Wales — and China's Galactic Energy flies its reusable Pallas-1 rocket for the first time. Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support (https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Sponsor Details: Ensure your online privacy by using NordVPN . To get our special listener deal and save a lot of money, visit You'll be glad you did! Get the best secure and private email on the planet. Stop your Government, google and who knows who else spying on every email you write. Do what we did and use ProtonMail. They beleive in privacy and there are no ads in their business model...yet they still provide a free forever service. Check them out and get out special deal at www.astronomydaily.io/protonmail (https://www.astronomydaily.io/protonmail) Become a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click Here (https://www.spreaker.com/podcast/astronomy-daily-space-news-updates--5648921/support) This episode includes AI-generated content. Episode link: https://play.headliner.app/episode/35086238?utm_source=youtube

Space Nuts: Spanish Eclipse, Nancy Grace Roman Launch, Cloud Nine, and Venus's Mysterious Clouds Andrew Dunkley and Professor Fred Watson cover four big astronomy stories in this episode, from Fred’s trip to view a sunset eclipse in Spain to the launch of the Nancy Grace Roman Space Telescope. They also unpack a starless dwarf galaxy called Cloud Nine and a new way of thinking about the strange dark material in Venus’s clouds. Guests and speakers Andrew Dunkley - Host, frames the news, asks listener questions, and guides the discussion. Professor Fred Watson - Astronomer at large, explains the eclipse, the Roman telescope, Cloud Nine, and Venus’s clouds. Key topics In this episode, Fred recounts the Spanish eclipse expedition The eclipse was only 9 degrees above the western horizon at totality, making the viewing conditions unusually challenging. He and Marnie led a 16-person tour through France, Spain, and Switzerland before settling near Santander in northern Spain. They staked out a viewing site 2 kilometers from the hotel, set up a gazebo, and had to tie it down to a car to keep it from blowing away. The weather looked threatening, but a hole opened in the cloud just before totality, giving them a clear view of the corona. Fred described the yellowish corona, pink hydrogen clouds, and the crowd of around 2,000 people. We discuss the Nancy Grace Roman Space Telescope launch Andrew watched the launch live after being nudged by his own brain at the right moment. Fred noted the launch was flawless, with 27 Merlin motors firing. The telescope is headed for the L2 Lagrange point, about 1.5 million kilometers away. Roman is a 2.4-meter Hubble-class telescope but with 100 times the field of view. Its wide-angle infrared design should enable major surveys of dark matter, dark energy, and exoplanets via its coronagraph. Fred explains why Cloud Nine matters Cloud Nine is described as a starless dwarf galaxy about 14 million light years away. It lies near Messier 94 and was studied using the Gran Telescopio Canarias and its Hypercam instrument. The deep exposure was 2.36 hours, yet the team found no convincing stellar population. Fred says theory suggests the gas may be too hot to cool and collapse into stars because of the ultraviolet background radiation after reionization. He says Cloud Nine may be the first strong example of a galaxy predicted by standard cosmology but never before clearly identified. Venus’s clouds are still puzzling astronomers Fred explains that Venus appears yellowish because we see the top of its cloud layer, especially in visible light. In ultraviolet, Venus shows dramatic global cloud patterns caused by an as-yet unidentified absorber. The new study uses radiative transfer modeling to constrain what the unknown absorber could be. The team compares Venus’s cloud droplets to cigarette smoke, tiny particles that look light-colored when dispersed but could become dark sludge in bulk. The result suggests the absorber must be very efficient, very concentrated, or both, but it is not being claimed as evidence of life. Become a supporter of this podcast: https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support (https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Episode link: https://play.headliner.app/episode/35083231?utm_source=youtube

Today's episode — S05E183, Wednesday September 2, 2026: Main story: A thermal anomaly beneath Mars's south pole. Writing in Nature on August 27, a team led by Alexander Berne (Caltech PhD '26, now University of Arizona) reports that the interior of Mars's southern hemisphere is 200–400 °C hotter than the northern hemisphere and partially molten. The team used tidal tomography — measuring how much the solid body of Mars flexes under the Sun's tidal pull by tracking minute velocity changes in three orbiters (Mars Global Surveyor, Mars Odyssey and Mars Reconnaissance Orbiter) across roughly 25 years of radio tracking data. Hotter, softer rock deforms more, so the degree of flex reveals interior temperature. The result offers a deep-interior explanation for the Martian crustal dichotomy — the sharp division between the smooth low northern plains and the ancient, thickly crusted southern highlands, unexplained since the Viking era — and also accounts for the concentration of crustal magnetic anomalies in the south and the unexpectedly strong seismic-wave damping seen by InSight. The cause of the asymmetry remains open: a giant early impact, lopsided mantle convection, or a heat-trapping compositional layer. Co-authors span Brown University, NASA Goddard, the University of Arizona, Academia Sinica, the University of Rome, TU Delft, UCLA, UT Austin, CU Boulder and UC Santa Cruz. Crew-13 stands down. NASA and SpaceX announced on August 29 that an oxidizer leak had been found in the Dragon spacecraft's propulsion system during standard prelaunch processing, delaying the Crew-13 launch from its September 12 target. Teams are performing additional tests and data review and will complete any necessary rework before flight; a new target date will be announced once available. The crew is commander Jessica Watkins (NASA), pilot Luke Delaney (NASA), and mission specialists Joshua Kutryk (CSA) and Sergey Teteryatnikov (Roscosmos), flying an approximately seven-month increment with significant station maintenance and several spacewalks planned. Swift is observing again. NASA's Neil Gehrels Swift Observatory restarted science operations on August 26, with two of its three instruments back online and the third expected within weeks. Swift's telescopes had been powered down progressively — the ultraviolet/optical and X-ray telescopes in February, the Burst Alert Telescope in April — to reduce power draw and atmospheric drag while awaiting a boost from Katalyst Space's LINK spacecraft, launched in July. NASA announced on August 19 that LINK would not attempt the capture after developing attitude-control problems. With no rescue coming, NASA has restarted the instruments to extract as much science as possible. NASA expects Swift to fall below roughly 300 km (185 miles) — where telescope operations become impractical — within the next one to two months. Katalyst will still fly proximity operations to demonstrate in-orbit servicing techniques. An 80,000-year mission to Alpha Centauri. The Seattle-area nonprofit Fermi Explorer Mission announced plans to launch a 100–200 kg probe toward Alpha Centauri (4.4 light-years away) at the end of 2029, most likely on a SpaceX rideshare. Solar electric propulsion plus repeated perihelion pumping manoeuvres would build a cruise speed of 24.2 km/s (about 54,000 mph) — faster than New Horizons at Pluto — for a journey of roughly 80,000 years: 12 years of active operations followed by around 79,500 years of coasting. Budget is under $15 million, with $10 million verbally pledged. Payload is at least 1 kg in a shielded 10 cm cube, including a digitised Voyager Golden Record, messages from children worldwide, and cosmic-ray detectors. Co-founders Philip Johnston, Ezra Feilden and Adi Oltean are behind the space computing company Starcloud; the advisory board includes Rob Meyerson (former Blue Origin president) and Jeff Thornburg (former SpaceX propulsion lead). Johnston: "We'll be the first to leave, and the last to arrive." It would be the first spacecraft deliberately aimed at a specific star. Tonight's sky and the month ahead: Five naked-eye planets are in play through September. Venus dominates the early evening, low in the west/west-southwest about 14° up an hour after sunset (Sydney sunset ≈ 5:34pm AEST), still close to Spica after last night's conjunction, and building to maximum brilliance on September 18 — with a thin crescent Moon alongside on the 14th. Saturn is up most of the night at magnitude +0.4 with its rings tilted just 8° from edge-on, the narrowest in about a dozen years, and rides far higher for Southern Hemisphere observers than for northern ones. Mars rises around 1:40am and is slowly brightening; Jupiter rises east-northeast around 3:50am, and on September 8 the Moon occults Jupiter for much of North America. Mercury appears low in evening twilight in the final week, about 1° above Spica on the 25th. The Moon is a waning gibbous heading to last quarter on September 4....