Show notes
A launch-packed Wednesday kicks off with two rocket milestones — SpaceX's BlueBird 8-10 direct-to-cell satellite launch and Ariane 6's record-breaking Amazon Leo flight — followed by a splashdown update for the science-laden Dragon CRS-34. Then a Chandra double-header delivers the most detailed X-ray view ever of M87's famous black hole jet, plus the discovery of possible supernova wreckage at the very heart of the Milky Way. We close with JWST's extraordinary weather portrait of WASP-121b — a planet where the rain is made of rubies and sapphires. Story Summaries & Key Facts Story 1 — SpaceX BlueBird 8-10 Launch • Launched: 2:39 a.m. EDT, 17 June 2026, from Cape Canaveral Space Force Station (SLC-40) • Vehicle: SpaceX Falcon 9 (booster B1077, 29th flight) • Booster recovery: drone ship 'A Shortfall of Gravitas', Atlantic Ocean • Payload: AST SpaceMobile BlueBird 8, 9 & 10 (Block 2 next-generation satellites) • Antenna array: ~2,400 sq ft each — largest commercial phased arrays in LEO • Peak data speed: 120 Mbps per coverage cell (nearly double Block 1) • Processing bandwidth: 10 GHz per satellite • Goal: space-based cellular broadband direct to standard smartphones • AST network partners: 50+ MNOs including AT&T, Verizon, Vodafone (~3 billion subscribers) Story 2 — Ariane 6 Record Payload • Mission: VA269 / LE-03 (Amazon Leo 3rd Ariane 6 flight; 8th Ariane 6 overall; 3rd of 2026) • Launch site: Guiana Space Centre, Kourou, French Guiana • Payload: 36 Amazon Leo broadband satellites — heaviest Ariane payload ever (~20,820 kg) • First flight of upgraded P160C solid rocket boosters (debut; replaces P120C) • P160C improvement: +1 metre longer, carries 156 tonnes propellant each (+10% performance) • Ariane 64 LEO capacity with P160C: ~22 tonnes • Previous flights each carried 32 satellites; today's adds 4 more • Arianespace milestone: 100 Amazon Leo satellites launched in under 5 months • Next Ariane 6 launch: 28 August (2-booster configuration; likely Meteosat-14) Story 3 — Dragon CRS-34 Splashdown (Update) • UPDATE on yesterday's S05E116 story (undocking reported 16 June 2026) • Dragon CRS-34 splashed down off Southern California coast, 17 June 2026 (~5:08 a.m. PDT) • Capsule: Cargo Dragon 2 (C209, 6th flight); undocked ~12:25 p.m. EDT 16 June • Science returned: bioprinted organ/cartilage tissue; DNA-inspired cancer treatment materials • Also returned: blood-forming stem cells; cryogenic propellant storage experiment data • Dragon is the ONLY ISS cargo vehicle capable of returning cargo to Earth intact • Time-sensitive samples flown by helicopter from recovery ship to Kennedy Space Center • CRS-34 launched 15 May 2026; delivered ~6,500 lbs cargo to Expedition 74 crew Story 4 — Chandra / M87 Jet (Double-Header Part 1) • Published: 15 June 2026; presented at 248th AAS Meeting, Pasadena, CA • Lead researcher: Camille Poitras (PhD student, Laval University, Canada) • M87* mass: 6.5 billion solar masses; distance: ~55 million light-years • M87* was the first black hole ever directly imaged (Event Horizon Telescope, 2019) • Data span: Chandra observations 2012–2025, processed with advanced deconvolution • Key finding 1: Two distinct components revealed in feature HST-1 (previously blended) • Key finding 2: Global X-ray emission decrease of up to 84% — consistent with synchrotron cooling • Key finding 3: Jet features show both quasi-stationary and superluminal apparent motion • Multi-wavelength: Chandra + JWST + Hubble + VLA + ALMA combined • Significance: most detailed evolving picture of any black hole jet ever produced Story 5 — Chandra / Galactic Centre Supernova (Double-Header Part 2) • Published: Astrophysical Journal, released 14–15 June 2026 • Lead: Zhenlin Zhu et al. (UCLA); data from Chandra + ESA XMM-Newton + MeerKAT + Pan-STARRS • Location: Sagittarius C complex, ~26,000 light-years from Earth • Finding: possible supernova remnant (diffuse X-ray emission) near Sgr A* • If confirmed: closest supernova remnant ever found to Sagittarius A* • Estimated age of explosion: ~1,700 years ago (approx. 3rd–4th century CE) • Ejection speed: ~2 million mph; brightens region ~10x vs nearby star clusters • Galactic centre context: extreme region of massive stars, magnetic threads, fast-orbiting gas • Importance: SNRs supply iron, oxygen, silicon — key ingredients for planet/life formation Story 6 — JWST / WASP-121b • Published: June 2026 (JWST new observational results); story filed 16 June 2026 • Planet: WASP-121b — ultra-hot Jupiter, ~855 light-years away, constellation Puppis • Size: ~1.75–2× Jupiter; tidally locked (one side always faces its star) • Orbital period: just 30.5 hours (one of the shortest known) • Dayside temperature: ~3,000°C (hot enough to vaporise metals including iron, aluminium) • Wind speed: ~18,000 km/h, carrying vaporised metals from dayside to nightside • Ruby/sapphire rain: aluminium + oxygen → corundum (Al₂O₃) → with impurities = ruby/sapphire • JWST delivered: most detailed 3D atmospheric weather portrait of any exoplanet to date • Broader context: marks shift from 2D snapshots to full 3D atmospheric modelling of exoplanetsBecome a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-space-news-updates--5648921/support.Sponsor Details:Ensure your online privacy by using NordVPN. 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