NASA’s Perseverance detected chromium-bearing corundum on Mars through a red luminescence signal; the rover has not found collectible rubies.
Rubies On Mars?
Browsing Category
General
47 posts
Potential Nor’easter Could Usher In Season’s First Snow For Millions As Cold Air Sweeps Across East
A late-week storm could bring rain, wind and mountain snow to the Northeast, but its track and coastal impacts remain uncertain.
A Barbarian Tribe’s Mythic Origin Story Is True, Ancient DNA Reveals
Ancient DNA studies find evidence of substantial Scandinavian ancestry among Goths, supporting part of Jordanes’s migration account while leaving its details uncertain.
The Polar Vortex Is About To Go Haywire
Scientists say a polar vortex disruption is developing unusually early, but its effects on North American weather remain uncertain.
At Least 80 Rescued As Historic Flooding Prompts State Of Emergency Near Georgia-Tennessee State Line
At least 80 people were rescued in Georgia and 68 in Tennessee after record flooding hit communities along the state line.
Links For November 2026
Astral Codex Ten’s November roundup mixes AI and California disaster forecasts with essays, community news and links the author says are unverified.
APOD: 2026 November 4 – The Not-So-Hidden Galaxy, IC 342
NASA’s Nov. 4 Astronomy Picture of the Day features IC 342, a nearby spiral galaxy partly obscured by the Milky Way.
APOD: 2026 November 2 – A Long Cloud On Mars
NASA’s Nov. 2, 2026, Astronomy Picture of the Day features a seasonal water-ice cloud that trails more than 1,500 kilometers from Arsia Mons.
Open Thread 458
Astral Codex Ten’s Open Thread 458 invites reader discussion and lists voting guides, a FutureSearch hiring notice, a London protest and a new meetup.
The Duty Of A Scholar
A computer security researcher revisits a 2004 Intel processor flaw and argues that scholars have an ethical duty to share consequential findings.
