{"podcast":{"title":"Astronomy Daily: Latest Space News","slug":"astronomy-daily-space-news-updates-5658676","podcast_index_feed_id":5658676,"rss_url":"https://www.spreaker.com/show/5648921/episodes/feed","website_url":"https://www.astronomydaily.io","image_url":"https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/3ef2bb90b641d3f09a10b0a281912ff3.jpg","author":"bitesz.com","episode_count":901,"summary":"Join hosts Anna and Avery for daily Space & Astronomy news, insights, and discoveries . Give us 20 minutes and we'll give you the Universe! For more visit, our website and sign up for the free daily newsletter and check out our continually updated newsfeed. http://astronomydaily.io . Follow us on X (formerly Twitter), Facebook, YouTube and TikTok ...just search for AstroDailyPod . Enjoy! Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-latest-space-news--5648921/support .","last_synced_at":"2026-09-19T16:18:05.091830+00:00","page_url":"https://stenobird.com/podcast/astronomy-daily-space-news-updates-5658676"},"episode":{"title":"Cosmic Secrets in Ocean Rocks, Record-Breaking Ariane Launch, and a Salty Pink World Revealed","slug":"cosmic-secrets-in-ocean-rocks-record-breaking-ariane-launch-and-a-salty-pink-world-revealed","published_at":"2026-06-21T04:32:52+00:00","page_url":"https://stenobird.com/podcast/astronomy-daily-space-news-updates-5658676/cosmic-secrets-in-ocean-rocks-record-breaking-ariane-launch-and-a-salty-pink-world-revealed","show_page_url":"https://stenobird.com/podcast/astronomy-daily-space-news-updates-5658676","url":"http://astronomydaily.io","audio_url":"https://dts.podtrac.com/redirect.mp3/mgln.ai/track/op3.dev/e/api.spreaker.com/download/episode/72616742/cosmic_secrets_in_ocean_rocks_record_breaking_ariane_launch_and_a_salty_pink_world_revealed.mp3","summary":"This weekend's Astronomy Daily wraps up the biggest stories from across the cosmos, starting with two completely fresh discoveries — a 1976 ocean rock that's turned out to hold atomic-scale proof of an ancient neutron star collision, and a record-breaking rocket launch from Europe's Ariane 6. Then we wind back through the week for our four biggest headlines: a new crew for Artemis III, JWST's salty 'Pink Planet' discovery, an update on the daring Swift Observatory rescue mission, and China's Tianwen-2 closing in on its target asteroid. Story 1: A Kilonova's Fingerprint, Found in a 1976 Ocean Rock • A rock sample dredged from the Pacific seafloor in 1976 has been found to contain a few hundred atoms of plutonium radioisotopes. • The plutonium originated from a kilonova — a collision between two neutron stars — that occurred over 100 million years ago. • Stellar debris from the merger settled to Earth and was slowly incorporated into a ferromanganese crust on the ocean floor. • Isotope ratios provide the strongest physical clues yet to what created the elements and roughly when the merger occurred. • Study published 18 June 2026. Story 2: Ariane 6 Smashes Its Own Heaviest-Payload Record • On 17 June 2026, an Ariane 64 rocket launched 36 Amazon Leo satellites from French Guiana (mission VA269 / LE-03). • First flight of new P160C solid boosters — about a metre longer than the previous P120C, holding up to 156 tonnes of propellant each. • Boosters deliver roughly a 10% performance increase, raising Ariane 64's LEO capacity to approximately 22 tonnes. • The mission broke the 13-year record for heaviest payload ever launched by an Ariane rocket, previously held by the 2013 ATV 'Albert Einstein' resupply flight. • Eighth Ariane 6 launch overall; 100th Amazon Leo satellite dep…","meta_description":"This weekend's Astronomy Daily wraps up the biggest stories from across the cosmos, starting with two completely fresh discoveries — a 1976 ocean rock tha…","key_points":[],"chapters":[],"topics":[],"duration_seconds":782,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/astronomy-daily-space-news-updates-5658676/episodes/cosmic-secrets-in-ocean-rocks-record-breaking-ariane-launch-and-a-salty-pink-world-revealed/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/astronomy-daily-space-news-updates-5658676/cosmic-secrets-in-ocean-rocks-record-breaking-ariane-launch-and-a-salty-pink-world-revealed.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}