LIGO's Record Black Hole, Mars Clay Band & Post-ISS Future
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LIGO's Record Black Hole, Mars Clay Band & Post-ISS Future
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(00:00:43) LIGO's Record Black Hole Merger
(00:01:48) ExoMars Clay Deposits on Mars
(00:02:47) Curiosity at Campo Marte
(00:03:14) Post-ISS Commercial Stations
This episode covers the biggest space and astronomy stories from the past 24 hours, led by a landmark detection from gravitational-wave astronomy.
The LIGO collaboration has confirmed GW231123 — a black hole merger producing a remnant of 225 solar masses, doubling the previous gravitational-wave record. Standard stellar models cannot explain a black hole that large from a single collapse, pointing to hierarchical mergers as the likely formation pathway. The signal was presented at the GR24 conference, and theorists are still catching up to what the detectors found.
On Mars, a new study in Icarus has mapped a continuous 600-kilometre band of clay deposits across Oxia Planum and Mawrth Vallis — the planned landing zone for the ExoMars Rosalind Franklin rover. Estimated at four billion years old, the deposits suggest a regional ocean or vast groundwater system, not a localised wet patch. The rover carries a two-metre drill and a biosignature lab designed precisely for this terrain.
Also in this episode: SpaceX's drone ship OCISLY has now recorded 200 successful booster landings, with Booster B1088 completing its sixteenth flight while the Starlink constellation crosses 10,000 satellites. NASA's Curiosity rover is drilling at Campo Marte on Mount Sharp, processing mineralogy and volatile chemistry data. And as the ISS approaches its post-2030 retirement, three commercial successors — Axiom Station, Orbital Reef, and Starlab — are racing to fill the gap, with NASA repositioning itself as a customer rather than an operator.
Clear, accurate, and concise — everything that matters in space and astronomy today.
This episode includes AI-generated content.
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