An Atmosphere That Shouldn’t Exist + 12,000 Artemis II Photos

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Wednesday 6 May 2026 | astronomydaily.io | @AstroDailyPod Episode Summary In today's episode, Anna and Avery explore six remarkable stories from across the cosmos: a tiny frozen world beyond Pluto surprises scientists with an atmosphere it should never have; NASA drops twelve thousand stunning photographs from the Artemis II mission and Artemis III preparations accelerate; Blue Origin's uncrewed moon lander Endurance passes its toughest test; new research confirms the sun actively speeds up the descent of space debris; radar-equipped drones emerge as a key tool for mapping buried Martian ice; and Comet PanSTARRS makes its debut in southern skies. Stories in This Episode 1. The Atmosphere That Shouldn't Exist Japanese astronomers have detected a thin atmosphere around trans-Neptunian object 2002 XV93 — a Kuiper Belt body just 500 km across. Published in Nature Astronomy, the discovery challenges long-held assumptions about which bodies can retain atmospheres. Possible causes include cryovolcanism or a recent cometary impact. Lead researcher: Dr Ko Arimatsu, National Astronomical Observatory of Japan. 2. NASA Releases 12,000+ Artemis II Photos + Artemis III Update NASA has published more than 12,000 high-resolution images from the Artemis II mission, captured using Nikon cameras and iPhone 17 devices by the crew of Wiseman, Glover, Koch, and Hansen. The archive includes lunar far-side close-ups, Earthset images, star trails, and a solar eclipse from space. Meanwhile, the Artemis III SLS core stage has arrived at Kennedy Space Center for assembly, with a mid-2027 launch targeting a 460 km Earth-orbit docking test. 3. Blue Origin's Endurance Passes NASA Vacuum Test Blue Origin's Blue Moon Mark 1 uncrewed cargo lander (nickname: Endurance) has completed thermal vacuum testing inside Chamber A at NASA's Johnson Space Center, Houston. The lander is targeted for the Moon's south polar region later in 2026, carrying stereo cameras and a laser retroreflector array. MK1 informs the development of the crewed Blue Moon Mark 2. 4. Solar Activity Accelerates Space Debris Reentry A study published today in Frontiers in Astronomy and Space Sciences tracked 17 pieces of orbital debris through three solar cycles (1986–2024). Researchers at India's Vikram Sarabhai Space Centre found that once sunspot numbers reach ~70% of their cycle peak, orbital decay rates increase sharply due to thermosphere expansion and increased drag. Lead researcher: Ayisha Ashruf. 5. Radar Drones Could Map Hidden Water Ice on Mars A new study in Journal of Geophysical Research: Planets proposes using low-flying radar-equipped drones to precisely map debris-covered glaciers on Mars. Tests on Earth's Galena Creek Rock Glacier in Wyoming demonstrated the technique can resolve the ice-debris boundary with unprecedented precision — information critical for future human missions planning to use Martian water resources. 6. Comet C/2025 R3 PanSTARRS — Now Visible from Southern Hemisphere Having passed perihelion on 19 April 2026 (at ~75 million km from the Sun) and peak northern hemisphere visibility, Comet C/2025 R3 PanSTARRS is now emerging in southern skies. Currently in Eridanus and heading toward Orion, the comet will pass within ~2° of the Orion Nebula 10–12 May. Best viewing conditions: around new moon 16 May. The comet is on a hyperbolic trajectory and will not return. Connect With Us Website: astronomydaily.io Podcast: Available on all major podcast platforms X/Twitter: @AstroDailyPod Instagram: @AstroDailyPod TikTok: @AstroDailyPod Tumblr: @AstroDailyPod

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