Astronomy Daily: Latest Space News

Show notes
ESCAPADE's double slingshot over Australia NASA's twin ESCAPADE spacecraft, Blue and Gold, will each fly a powered Earth flyby on their way to Mars: the first around 5 a.m. EST on Saturday 7 November, the second around 6 a.m. EST on Monday 9 November. Each fires its engine for about nine minutes at closest approach, a manoeuvre NASA says no Mars-bound spacecraft has flown successfully before. The burns happen over southern Australia, starting 8:51 p.m. AEDT on the 7th and 9:51 p.m. AEDT on the 9th, and the spacecraft may be visible there through telescopes. Western US observers get their best chance between midnight and 2 a.m. PST. Arrival at Mars: 7 and 9 September 2027. Where did the oxygen go? Hubble's GLOW project (McQuinn et al., The Astrophysical Journal, published 2 November; preprint since August) measured oxygen in 37 nearby dwarf galaxies and found they keep only 4–25% (about 11% on average) of the oxygen their stars made, nearly all of it in gas. Simulations predict several times more. Supernova-driven winds are the likely culprit; where the oxygen ended up is still unknown. Gas data included CSIRO's Australia Telescope Compact Array. CHAPEA 2: a year on a pretend Mars NASA's second CHAPEA crew, Ross Elder, Ellen Ellis, Matthew Montgomery and James Spicer, left the 3D-printed Mars Dune Alpha habitat at Johnson Space Center on 31 October after 378 days, including communication delays of up to 22 minutes. An integrated HERA-plus-CHAPEA study is planned for 2027. Can a black hole split in two? A theory paper in Physical Review D (Cacciapaglia, Del Piano, Sannino & Vellucci, 22 October; preprint June) finds a split is thermodynamically allowed only, possibly, for black holes spinning near the maximum rate. The splitting process itself remains unknown, and no split has been observed. Quick hits Swift's final re-entry (see episode for status at recording); Starship Flight 15 targeted 12 November on an FAA planning slide, no SpaceX date yet; BepiColombo Mercury orbit capture 21 November; Voyager 1 one light-day from Earth around 18 November. Skywatch ESCAPADE telescope challenge over Australia (Sat 8:51 p.m. and Mon 9:51 p.m. AEDT); New Moon 9 Nov; Taurid fireballs; Mars and Jupiter closing to about 1.2° on 16 Nov (UT); thin crescent Moon under 1° from Venus around 10:45 UT on 7 Nov, best from eastern North America; Venus about 1.2° from Spica on the mornings of 9–10 Nov; Mercury at greatest western elongation 20 Nov. Never look at the Sun without ISO 12312-2 certified protection. Sources NASA ESCAPADE blog: Twin ESCAPADE spacecraft to slingshot past Earth (2 Nov 2026) — https://science.nasa.gov/blogs/escapade/2026/11/02/nasas-twin-escapade-spacecraft-to-slingshot-past-earth-on-way-to-mars/ NASA SVS ESCAPADE flyby star charts — https://svs.gsfc.nasa.gov/15114/ JPL Horizons System — https://ssd.jpl.nasa.gov/horizons/app.html#/ UC Berkeley ESCAPADE mission timeline — https://escapade.ssl.berkeley.edu/timeline-news Blue Origin: New Glenn launches NASA's ESCAPADE (13 Nov 2025) — https://www.blueorigin.com/en-US/news/new-glenn-launches-nasa-escapade-lands-fully-reusable-booster NASA: Hubble uncovers case of missing oxygen in nearby dwarf galaxies (2 Nov 2026) — https://science.nasa.gov/missions/hubble/nasas-hubble-uncovers-case-of-missing-oxygen-in-nearby-dwarf-galaxies/ McQuinn et al., GLOW II: A Census of Oxygen in Low-Mass Galaxies, ApJ, DOI 10.3847/1538-4357/ae93a6 (preprint arXiv 2608.07665) — https://arxiv.org/abs/2608.07665 NASA: CHAPEA crew 'returns' to Earth (31 Oct 2026) — https://www.nasa.gov/image-article/nasas-chapea-crew-returns-to-earth/ University of Southern Denmark: Can a black hole split in two? — https://www.sdu.dk/en/om-sdu/fakulteterne/naturvidenskab/nyheder-2026/black-hole-in-two Cacciapaglia, Del Piano, Sannino & Vellucci, Phys. Rev. D 114, 084072 (22 Oct 2026), DOI 10.1103/cx69-t466 — https://journals.aps.org/prd/abstract/10.1103/cx69-t466 NASA Swift blog: Swift Observatory to re-enter atmosphere (2 Nov 2026) — https://science.nasa.gov/blogs/swift/2026/11/02/nasas-swift-observatory-to-re-enter-atmosphere/ Starlust: Starship Flight 15 FAA planning date — https://starlust.org/spacex-starship-flight-15-possible-launch-date-revealed/

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Show notes Swift's Last Orbit: NASA's burst hunter falls home, a gamma-ray burst that is two explosions in one, and 3I/ATLAS's dusty ice. Swift's Last Orbit NASA's Neil Gehrels Swift Observatory is expected to re-enter Earth's atmosphere on Wednesday 4 November; the US Space Force prediction is about 03:30 EST (08:30 UTC, 19:30 AEDT), plus or minus 11 hours. Surviving fragments are confined between 20.6°N and 20.6°S, a band that includes northern Australia; NASA puts the risk of harm to anyone at about 1 in 2,100. We look back at 22 years of science from a two-year mission: more than 2,000 gamma-ray bursts, the first short-burst afterglow in 2005, the BOAT in 2022, and about 7,000 papers. Two Bursts, Two Births GRB 160425A, caught by Swift in April 2016, is a 1.7-second short spike, four minutes of silence, then a 51-second long burst from the same place. A Nature Astronomy paper (Li, Wang, Zhang, Cai et al., 23 October; preprint March) argues the first is merger-like and the second collapsar-like. One event, no confirmed supernova or kilonova. 3I/ATLAS's Dusty Ice Webb's NIRSpec found the interstellar comet's ice grains are about a micron across and mixed with lots of dust, resembling some trans-Neptunian objects more than familiar comets (Protopapa et al., ApJL, 26 October; preprint September). Quick Hits Starship Flight 15 targeted NET 12 November per the FAA (unconfirmed by SpaceX); BepiColombo's Mercury orbit insertion on 21 November; Voyager 1 reaches one light-day around 18 November. Skywatch Venus near Spica before dawn, joined by a 5%-lit crescent Moon on Saturday 7 November; Mars and Jupiter closing to 1.2° by 16 November (high from the north); Saturn high in southern evening skies; New Moon 9 November; Leonids 17–18 November. ISO 12312-2 solar safety

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Show notes
Two black holes caught feeding side by side just 1.3 billion years after the Big Bang. JWST and ALMA confirm LID-1166, the first close dual AGN found beyond the nearby universe. Plus: Swift's final days and NASA's call for ideas to save Hubble, Rubin finds Neptune's missing trailing Trojans as Lucy enters Jupiter's, TRACERS' first look at where the solar wind gets in, and a both-hemispheres skywatch built around the Mars-Jupiter meeting on 16 November. Two Hearts in One Galaxy (LID-1166) JWST/NIRSpec integral-field spectroscopy resolves two feeding black holes ~1.5 kpc (~4,900 ly) apart at z~4.5; ALMA [CII] finds matching cold gas around each. Both appear super-Eddington yet already sit on the local black hole-host mass relation. One system, projected separation; preprint posted July, published in Nature Astronomy this week. Living on Borrowed Altitude Swift ended operations on 20 October and is expected to re-enter in early November. NASA's 29 October Request for Information asks industry about boosting, servicing or safely de-orbiting Hubble, likely to re-enter in 2033-34. Not a commitment; responses due 30 November. Trojan Week Rubin early data confirms 2025 MH348 and 2025 NN80 as long-lived trailing Neptune Trojans, plus candidate 2025 MD138 (Schwamb et al., ApJL). Lucy becomes the first spacecraft to enter the Jupiter Trojan region; Eurybates flyby 11 August 2027. TRACERS: Where the Solar Wind Gets In First results (JGR: Space Physics) suggest cusp reconnection is largely spatial rather than temporal. Mission extended to spring 2027. Quick hits BepiColombo Mercury orbit insertion 21 November; Starship Flight 15 targeted November with a double catch attempt; Voyager 1 one light-day from Earth around 18 November. Skywatch Mars and Jupiter 1.2 degrees apart before dawn on 16 November; Venus, a thin Moon and Spica low at dawn 7-10 November; Saturn high in southern evenings; zodiacal light around New Moon (9 Nov); Leonids 17-18 November; supermoon 24 November. ISO 12312-2 solar safety reminder.

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Show notes
Electrons made on the wrong side of Earth's 'impenetrable barrier', a gamma-ray burst that only looked weak, the week that was, and a Halloween that is astronomically a week early. The Wall That Broke In 2014 NASA's Van Allen Probes revealed a sharp inner edge to Earth's outer radiation belt: electrons at the very highest energies never got closer than about 2.8 Earth radii. During the May 2024 superstorm — the biggest since the 2003 Halloween storms — Japan's Arase satellite saw electrons of about 3 MeV rise deep inside that 'impenetrable barrier'. A new paper led by Yoshizumi Miyoshi (Nagoya University ISEE) shows a peak in electron phase space density growing in place at L* ≈ 3, about 12,000 km up — evidence the electrons were accelerated there rather than carried in. Intense chorus waves, operating in a region emptied by a crushed plasmasphere and a negative ionospheric storm, are the likely engine. Caveats: one storm; 'consistent with' chorus acceleration; the breach itself had been reported before — the new part is the mechanism. Not Faint, Just Side-On GRB 260310A, caught by Fermi on 10 March 2026, had a feeble gamma-ray flash but one of the brightest afterglows ever seen. Yu-Han Yang (Tor Vergata) and colleagues argue we viewed a two-component jet from the side. Preprint from May; published in ApJL this month; competing models exist. The Week That Was E214 GRB 160425A, one burst with two births · E215 θ¹ Ori C, the star born twice · E216 Rubin's first dwarf-planet candidate 2026 ED138 · E217 Betelgeuse pulled out of round by Siwarha · E218 Teghaza 001, one of the oldest pieces of Mars. Plus Swift's re-entry watch, Voyager 1 at one light-day on 18 Nov, and Starship Flight 15 targeted for November. Skywatch Halloween is astronomically a week early (true cross-quarter 7 Nov). Mars, Jupiter and Regulus line up before dawn, Mars–Jupiter just over 1° apart on 16 Nov. Moon near Mars and Jupiter on the mornings of 2–3 Nov. Saturn rules the evening, best from the south. US clocks fall back 1 Nov. Solar viewing only with ISO 12312-2 certified filters. Sources ·         Miyoshi et al., GRL 53, e2026GL125879 (2026) — https://doi.org/10.1029/2026GL125879 ·         ISAS/JAXA release, 27 Oct 2026 (Japanese) — https://www.isas.jaxa.jp/topics/004417.html ·         Nagoya University release via phys.org — https://phys.org/news/2026-10-solar-storm-triggered-ultrarelativistic-electrons.html ·         Yang et al., ApJL 1011 L22 (GRB 260310A) — https://iopscience.iop.org/article/10.3847/2041-8213/aea990 ·         arXiv 2605.23818 (Yang et al. preprint) — https://arxiv.org/abs/2605.23818 ·         Gill et al., arXiv 2605.26091 (competing model) — https://arxiv.org/abs/2605.26091 ·         NASA: Swift mission ends ahead of re-entry — https://science.nasa.gov/blogs/swift/2026/10/23/nasas-swift-mission-ends-ahead-of-re-entry/

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Show notes A rose-coloured rock picked up in the Sahara in 2022 turns out to be one of the oldest pieces of Mars ever found. Teghaza 001 formed at least 4.1 billion years ago, and two independent radiometric clocks agree. We explain how it was dated, what it says about early Mars losing its water, and why its source is still a shortlist of 13 craters in the southern highlands. Also: Voyager 1 goes silent for two days and recovers on its own as it nears one light-day from Earth on 18 November; Hubble finally sees the 'Cat's Tail' of Beta Pictoris, the wreckage of a collision between two Pluto-sized worlds; two Halloween ghosts in the Carina Nebula; and quick hits on the 100th US spacewalk from the ISS, Reid Wiseman's move to JPL, Swift and Starship. Skywatch: US clocks go back on 1 November, Saturn in the evening, Venus returns to the morning sky, Mars and Jupiter close in, the Moon passes Pollux, Mars, Jupiter and Regulus, the Southern Taurids, and Carina for southern observers.

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