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  • A Nobel in Ice: Unveiling the Secrets of the IceCube Neutrino Observatory

    A Nobel in Ice: Unveiling the Secrets of the IceCube Neutrino Observatory
    Oct 9 2026
    Show notes We're back after a short break! Today: the 2026 Nobel Prize in Physics goes to Francis Halzen for the IceCube Neutrino Observatory — a cubic kilometre of Antarctic ice turned into a telescope. Then a Sydney-led team publishes the most distant fast radio burst yet, from a dwarf galaxy just 3 billion years after the big bang; Hubble's archive yields a possible second-generation planet around a white dwarf; and we catch up on Starship's first orbit, Crew-13, Juice's Earth flyby and the end of the LINK/Swift story. Skywatch: zodiacal light at both ends of the day, Mercury above Venus in southern twilight, and Mars in the Beehive for the north. Segment 1 — LEAD: The Telescope Made of Ice · Nobel Prize in Physics 2026 — nobelprize.org/prizes/physics/2026 (6 Oct 2026) · Royal Swedish Academy of Sciences press release, 6 Oct 2026 · AIP congratulations release, Newswise, 6 Oct 2026 · University of Wisconsin–Madison / IceCube background (via Interesting Engineering, 6 Oct 2026) Segment 2 — The Most Distant Fast Radio Burst · NASA: 'Webb Measures Distance to Farthest Fast Radio Burst, Suggesting Origin', 8 Oct 2026 · Caleb et al., Science, 8 Oct 2026, DOI 10.1126/science.adz2675 · Preprint: arXiv 2508.01648, 3 Aug 2025 (14-month gap disclosed) Segment 3 — A Planet Built From a Dead Star · NASA: 'Suspected Second-generation Planet Solves NASA Hubble Cold Case', 5 Oct 2026 · Williams et al., Nature Astronomy, 5 Oct 2026, DOI 10.1038/s41550-026-02983-7 · ESA/Hubble heic2613; poster, UK White Dwarf meeting, Durham, July 2025 (disclosed) Segment 4 — While We Were Away · SpaceX Starship Flight 14 overview (via leonarddavid.com, 29 Sept 2026) · NASA: 'NASA's SpaceX Crew-13 Launches', 1 Oct 2026 · ESA: 'Successful Earth flyby improves Juice's course to Jupiter', 28–30 Sept 2026 · AP (Marcia Dunn): 'Private spacecraft falls back to Earth...', 25 Sept 2026 · JAXA: MMX launch schedule aboard H3 F10, 20 Aug 2026 Segment 5 — Skywatch: Both Hemispheres · PyEphem 4.2.1 computations, Sydney / Los Angeles / New York / London · BBC Sky at Night: Vesta and Pallas at opposition, Oct 2026 · NASA: What's Up, October 2026

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    24 min
  • The Great Water Mystery: Jezero Crater and the Hunt for Mars' Hidden History

    The Great Water Mystery: Jezero Crater and the Hunt for Mars' Hidden History
    Sep 23 2026
    Perseverance drove to the edge of an ancient Martian lake expecting a beach and found the inside of a volcano — rock that water has been through at least three separate times. Europe's Jupiter probe comes home on Monday night and crosses Australia in a fully dark sky. Two teams, using two completely different techniques, both find something hiding inside the most famous planetary system we have ever photographed — and an Australian instrument is in the middle of one of them. Plus: heavy water in an interstellar comet, and what it says about the star that made it. In this episode · LEAD — Three floods at the crater's edge. Candice Bedford (Purdue) and colleagues publish in Communications Earth & Environment: the Margin Unit at Jezero is igneous, not sedimentary, and records at least three distinct episodes of water — CO₂-rich groundwater making carbonate ridges, then silica associated with the lake, then a later hot-water event leaving fluorite veins. Habitability context, not a biosignature. · Juice returns. ESA confirms the third Earth gravity assist for 28 September — closest approach 11:45 UTC over the Indian Ocean, bending the trajectory ~20° and adding ~3.5 km/s. The spacecraft crosses Australia north-east to north-west 15–30 minutes earlier, in full darkness. · HR 8799. Two preprints in two weeks point at a fifth, inner planet — one from archival JWST aperture-masking data (~7 au, a few Jupiter masses), one from Gaia astrometry (2–3 au, 10–14 Jupiter masses). They do not obviously describe the same object. Neither is peer-reviewed. · 3I/ATLAS. A modelling paper explains the high deuterium-to-hydrogen ratio measured in March as consistent with formation around a low-metallicity — meaning old — star. · Quick hit: Starship Flight 14 still targeting 28 September; Crew-13 still 'no earlier than early October' on NASA's own page; Albania signs the Artemis Accords as the 73rd country. · Skywatch: the equinox as an instant rather than a date, the Juice pass over Australia, Venus and Mercury for the south, Mars and Jupiter before dawn for the north, and Saturn heading into opposition. Sources and further reading · Bedford, C. C. et al., 'Lake- and groundwater-associated alteration of the olivine-rich Margin unit in Jezero crater, Mars', Communications Earth & Environment (2026). DOI 10.1038/s43247-026-03997-9 · NASA/JPL, 'NASA Discovery Reveals Complex Water Systems on Early Mars', 21 September 2026. · ESA, 'Juice to fly past Earth for third gravity assist', 21 September 2026. · Nguyen, J. S. et al., 'A Candidate Innermost Fifth Planet In the HR 8799 System Revealed By JWST NIRISS Aperture Masking Interferometry', arXiv:2609.10507. · Lagrange, A.-M. et al., 'A fifth companion in the HR 8799 system revealed by Gaia', arXiv:2609.20996 (submitted to Nature Astronomy). · Furuya, K., Cordiner, M., Bockelée-Morvan, D. et al., arXiv:2609.12370. · NASA OIIR, 'NASA Welcomes Albania as Newest Artemis Accords Signatory', 21 September 2026. Skywatch figures computed in-session with PyEphem 4.2.1 for Sydney, Los Angeles, New York and London. Times are local unless marked UTC.Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support.Sponsor Details:Ensure your online privacy by using NordVPN. To get our special listener deal and save a lot of money, visit www.astronomydaily.io/nordvpn. 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/protonmailBecome a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click HereThis episode includes AI-generated content.
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    27 min
  • What Keeps a Galaxy Churning: Andromeda's Supernova Secrets Revealed

    What Keeps a Galaxy Churning: Andromeda's Supernova Secrets Revealed
    Sep 22 2026
    Supernovae keep galaxies churning A new study led by Fan Yi Meng from Tsinghua University provides the first comprehensive census of superbubbles in the Andromeda Galaxy, revealing that clustered supernova feedback is sufficient to sustain galactic-scale turbulence. This finding helps to explain why galaxies remain active over billions of years, with turbulence playing a crucial role in regulating star formation rates. The research, published in Nature Astronomy, highlights the energy balance between supernovae and the turbulence they create.Neutrinos may dictate stellar explosions A paper from Mariam Gogilashvili and Irene Tambora at the Niels Bohr Institute explores the role of neutrinos in determining which massive stars explode as supernovae. Their findings suggest that neutrino oscillations could lead to a significant number of stars collapsing into black holes, particularly those in the 16 to 30 solar mass range, addressing the long-standing red supergiant problem.TOI 1355b: A planet with an expiry date Researchers from the University of Tokyo have discovered TOI 1355b, a hot Jupiter with a unique eccentric orbit around an A-type star. This planet will stop transiting its host star by 2033 due to nodal precession, providing a rare opportunity to study its characteristics before it disappears from view.SpaceX Crew Missions Update NASA has contracted SpaceX for three additional crew rotation missions to the International Space Station, extending their partnership and ensuring continued access to the station. Crew 13 is currently in quarantine, with a launch targeted for early October.The Sun goes blank For the first time since February, the Sun has gone completely spotless, marking a significant moment in the solar cycle. As solar activity declines, a coronal hole is set to rotate into position, potentially leading to minor geomagnetic storms and auroras.1. Supernovae keep galaxies churning2. Neutrinos may dictate stellar explosions3. TOI 1355b: A planet with an expiry date4. SpaceX Crew Missions Update5. The Sun goes blankBecome a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support.Sponsor Details:Ensure your online privacy by using NordVPN. To get our special listener deal and save a lot of money, visit www.astronomydaily.io/nordvpn. You've been 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 believe in privacy and there are no ads in their business model... yet they still provide a free forever service. Check them out and get our special deal at www.astronomydaily.io/protonmailBecome a supporter of Astronomy AstroDailyPod by joining our Supporters Club. Commercial-free episodes daily are only a click away... Click HereSponsor Details:Ensure your online privacy by using NordVPN. To get our special listener deal and save a lot of money, visit www.astronomydaily.io/nordvpn. 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/protonmailBecome a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click HereThis episode includes AI-generated content.
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    28 min
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