Dark Matter Revealed by Light Echoes, MAVEN's Legacy, and Groundbreaking Research on Menstruation in Space
17 min•22 juni 2026
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 attitude control • Second flight 'Onward and Upward': carrying 5 university cubesats + 1 experiment; backed by ESA Boost! programme • 2026 scrubs: January (pressurisation valve), March (fuel temp/fishing vessel), April (pressure vessel), June 15 (fluid system anomaly) • Current status: no new launch date; Andøya window reportedly closed; Isar analysing data • Context: part of ESA's European Launcher Challenge — must achieve orbital flight by 2027 to qualify for up to €205M
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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 attitude control • Second flight 'Onward and Upward': carrying 5 university cubesats + 1 experiment; backed by ESA Boost! programme • 2026 scrubs: January (pressurisation valve), March (fuel temp/fishing vessel), April (pressure vessel), June 15 (fluid system anomaly) • Current status: no new launch date; Andøya window reportedly closed; Isar analysing data • Context: part of ESA's European Launcher Challenge — must achieve orbital flight by 2027 to qualify for up to €205M
Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-latest-space-news--5648921/support.
Sponsor Details:
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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.bitesz.com/protonmail
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