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Dark Matter Revealed by Light Echoes, MAVEN's Legacy, and Groundbreaking Research on Menstruation in Space
Season 5
Episode 121
Published 1 week, 4 days ago
Description
S05E121 | Monday, 22 June 2026 Hosts: Anna & Avery | astronomydaily.io | @AstroDailyPod
Story 1 — Dark Matter Is Hugging Our Galaxy's Black Hole • Virginia Tech researchers used 'echo mapping' — light reverberations around active black holes — to detect dark matter signatures • Supermassive black holes including Sgr A* (Milky Way) appear surrounded by dense dark matter clusters • Lead researcher Mayank Sharma: 'The observational evidence for dark matter is simply undeniable' • Published in Physical Review D, June 11, 2026 • Provides a new tool for probing dark matter in the most extreme gravitational environments Story 2 — Swift Rescue Mission: Launch Date Confirmed • NASA's Neil Gehrels Swift Observatory launched 2004; has been losing altitude due to atmospheric drag — no thrusters to compensate • Katalyst Space Technologies built LINK — a robotic servicer with 3 robotic arms and xenon Hall-effect thrusters • Northrop Grumman's Stargazer aircraft departed Wallops Flight Facility June 18 carrying Pegasus XL + LINK • Launch from Kwajalein Atoll, Marshall Islands: confirmed for June 27, 2026 • LINK must chase down Swift, inspect it, and latch on — a first-of-its-kind robotic capture mission • Critical altitude threshold: if Swift drops below 185 miles (300 km), rescue becomes impossible • Success would give Swift another ~22 years of science at its original 600 km altitude Story 3 — Chandra Spots a Supernova Near the Galactic Centre • NASA Chandra, ESA XMM-Newton, and MeerKAT (South Africa) detected a 'blue blob' of X-ray emission in Sagittarius C • Sagittarius C is a star-forming region ~26,000 light-years from Earth, a few dozen light-years from Sgr A* • Estimated age: ~1,700 years — light from the explosion would have reached Earth around 300 AD • Expansion speed: approximately 2 million miles per hour • Published in The Astrophysical Journal (Zhu et al., June 11); NASA APOD June 18 • If confirmed, one of the closest supernova remnants ever found to the Milky Way's central black hole Story 4 — MAVEN: The Eulogy • MAVEN (Mars Atmosphere and Volatile Evolution) launched November 2013; arrived Mars September 2014 • Original mission: 1 year. Actual mission: 11+ years — ended June 3, 2026 • Last contact: December 6, 2025 — entered fast spin, batteries drained, unrecoverable • Key discoveries: atmospheric escape rates, solar storm acceleration of Mars atmosphere loss, atmospheric sputtering (first observed at any planet), new types of Martian aurora • Also served as communications relay for Curiosity and Perseverance rovers • PI Shannon Curry's epitaph: 'Best Mars mission ever.' — 800+ scientific publications • MAVEN will remain in Mars orbit 50–100 years before eventually entering the Martian atmosphere Story 5 — Operation Period: First-Ever Space Menstruation Study • Non-profit Operation Period, led by Manju Bangalore and Priya Abiram, announced OP-01 mission on June 19 • First dedicated scientific study of menstruation in microgravity — despite 100+ women having flown to space • Current practice: astronauts typically suppress menstruation during spaceflight with hormones — due to lack of data, not proven necessity • OP-01: suborbital Virgin Galactic flight in 2027; researchers will conduct the study on themselves • Research wing: Operation Period's 'Redshift Lab' • Data vital for longer missions — Moon, Mars — where menstrual health management matters more Story 6 — Isar Aerospace's Spectrum Rocket: Europe Keeps Trying • Isar Aerospace (Ottobrunn, Germany): Europe's most advanced commercial small launch startup — 800M+ euros raised • Spectrum rocket: 28m tall, up to 1,000 kg to LEO, 700 kg to SSO; 10 engines • First flight (March 2025): failed after 30 seconds — vent valve opened unexpectedly, rocket lost attitu
Story 1 — Dark Matter Is Hugging Our Galaxy's Black Hole • Virginia Tech researchers used 'echo mapping' — light reverberations around active black holes — to detect dark matter signatures • Supermassive black holes including Sgr A* (Milky Way) appear surrounded by dense dark matter clusters • Lead researcher Mayank Sharma: 'The observational evidence for dark matter is simply undeniable' • Published in Physical Review D, June 11, 2026 • Provides a new tool for probing dark matter in the most extreme gravitational environments Story 2 — Swift Rescue Mission: Launch Date Confirmed • NASA's Neil Gehrels Swift Observatory launched 2004; has been losing altitude due to atmospheric drag — no thrusters to compensate • Katalyst Space Technologies built LINK — a robotic servicer with 3 robotic arms and xenon Hall-effect thrusters • Northrop Grumman's Stargazer aircraft departed Wallops Flight Facility June 18 carrying Pegasus XL + LINK • Launch from Kwajalein Atoll, Marshall Islands: confirmed for June 27, 2026 • LINK must chase down Swift, inspect it, and latch on — a first-of-its-kind robotic capture mission • Critical altitude threshold: if Swift drops below 185 miles (300 km), rescue becomes impossible • Success would give Swift another ~22 years of science at its original 600 km altitude Story 3 — Chandra Spots a Supernova Near the Galactic Centre • NASA Chandra, ESA XMM-Newton, and MeerKAT (South Africa) detected a 'blue blob' of X-ray emission in Sagittarius C • Sagittarius C is a star-forming region ~26,000 light-years from Earth, a few dozen light-years from Sgr A* • Estimated age: ~1,700 years — light from the explosion would have reached Earth around 300 AD • Expansion speed: approximately 2 million miles per hour • Published in The Astrophysical Journal (Zhu et al., June 11); NASA APOD June 18 • If confirmed, one of the closest supernova remnants ever found to the Milky Way's central black hole Story 4 — MAVEN: The Eulogy • MAVEN (Mars Atmosphere and Volatile Evolution) launched November 2013; arrived Mars September 2014 • Original mission: 1 year. Actual mission: 11+ years — ended June 3, 2026 • Last contact: December 6, 2025 — entered fast spin, batteries drained, unrecoverable • Key discoveries: atmospheric escape rates, solar storm acceleration of Mars atmosphere loss, atmospheric sputtering (first observed at any planet), new types of Martian aurora • Also served as communications relay for Curiosity and Perseverance rovers • PI Shannon Curry's epitaph: 'Best Mars mission ever.' — 800+ scientific publications • MAVEN will remain in Mars orbit 50–100 years before eventually entering the Martian atmosphere Story 5 — Operation Period: First-Ever Space Menstruation Study • Non-profit Operation Period, led by Manju Bangalore and Priya Abiram, announced OP-01 mission on June 19 • First dedicated scientific study of menstruation in microgravity — despite 100+ women having flown to space • Current practice: astronauts typically suppress menstruation during spaceflight with hormones — due to lack of data, not proven necessity • OP-01: suborbital Virgin Galactic flight in 2027; researchers will conduct the study on themselves • Research wing: Operation Period's 'Redshift Lab' • Data vital for longer missions — Moon, Mars — where menstrual health management matters more Story 6 — Isar Aerospace's Spectrum Rocket: Europe Keeps Trying • Isar Aerospace (Ottobrunn, Germany): Europe's most advanced commercial small launch startup — 800M+ euros raised • Spectrum rocket: 28m tall, up to 1,000 kg to LEO, 700 kg to SSO; 10 engines • First flight (March 2025): failed after 30 seconds — vent valve opened unexpectedly, rocket lost attitu