NASA’s Oct. 29 image shows the Teghaza 001 slice used to date an ancient Martian meteorite and map minerals recording its history.
Slice Of Martian Meteorite Teghaza 001
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History & Interesting Facts
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Tinga’s Tale
NASA describes a contact between possible impact breccia and dark rocks at Tinga, near Jezero crater; their relationship remains uncertain.
Why Global Trepanation?
Astral Codex Ten examines prehistoric skull openings, possible medical uses and why widespread trepanation declined. Several explanations remain speculative.
APOD: 2026 October 22 – The First Green Star, WD J1330+6435
NASA’s October 22 APOD features an illustration of WD J1330+6435 and explains how accreted elements may give some white dwarfs unusual colors.
BIPM Decides To Stop Adding Leap Seconds To UTC
A 2026 CGPM resolution makes UTC continuous from May 20, 2027, ending leap-second adjustments and allowing UT1 to differ by up to one hour.
APOD: 2026 October 14 – Mars And The Beehive Under An Aurora
NASA’s Oct. 14 Astronomy Picture of the Day features Mars near the Beehive star cluster under an aurora photographed in northern Sweden.
APOD: 2026 October 10 – Lunar Farside
NASA’s October 10, 2026 Astronomy Picture of the Day features a Lunar Reconnaissance Orbiter mosaic of the Moon’s rugged farside.
APOD: 2026 October 3 – Selfie At Vera Rubin Ridge
NASA’s Oct. 3, 2026 Astronomy Picture of the Day revisits a 2018 Curiosity rover selfie at Vera Rubin Ridge and notes a 2026 elevation milestone.
Why The Bronze Age Collapsed
A Works in Progress essay argues that iron’s local availability weakened the Bronze Age empires’ military advantage after their collapse.
NASA Asked Several Former SR-71A Staffers To Help Secret Restart
NASA has approached former SR-71A test staff about work on Tail No. 844, removed from display at Edwards. The agency has not confirmed a flight project.
