Bow and Arrow Galaxy Discovered, Hayabusa2's Daring Asteroid Flyby, and Mars' Geological Secrets Unveiled

Astronomy Daily S05E127 | Monday, June 29, 2026 Hosts: Anna & Avery | astronomydaily.io | @AstroDailyPod   In today's episode:   RAD-BAARG — The Bow-and-Arrow Galaxy A citizen scientist scanning LOFAR radio telescope data spotted a galaxy like nothing seen in 25 years — RAD-BAARG stretches 1.8 million light-years and shows what may be the clearest radio signature of a giant cosmic bow shock ever observed. Published June 22 in Monthly Notices of the Royal Astronomical Society.   Hayabusa2 Flyby — One Week Away Japan's Hayabusa2# spacecraft is set to fly past asteroid Torifune (2001 CC21) on July 5 at a distance of just 1–10 km — one of the closest asteroid encounters ever attempted. The spacecraft already delivered Ryugu samples to Earth in 2020.   Mars Magmatic Systems — Oxford/Nature Astronomy A University of Oxford-led study published June 26 in Nature Astronomy reveals seismic evidence that Mars once hosted vast, Earth-like transcrustal magmatic systems spanning potentially thousands of kilometres — without plate tectonics. Based on NASA InSight seismic data.   Skywatching — Strawberry Moon & Mercury Retrograde The full Strawberry Moon peaks at 23:58 UTC tonight in Sagittarius near the Teapot asterism. Mercury also begins retrograde motion today. Southern Hemisphere viewers have good conditions for lunar viewing in winter skies.   ESA Juice & 3I/ATLAS — Five New Findings ESA has published early results from Juice's November 2025 observations of interstellar comet 3I/ATLAS. Key findings: 2,000 kg of water vapour per second at perihelion; comet behaviour resembling solar system comets; novel trajectory data from NavCam; and confirmation of Juice's instrument readiness for the Jupiter mission.   NASA Artemis Audit — $5.9 Billion in Cancelled Contracts A NASA Inspector General memo finds the total value of cancelled Artemis programme hardware contracts reached $5.9 billion, reflecting cost increases and timeline extensions prior to programme restructuring. Artemis III lunar landing remains targeted for 2027.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.