Space, astronomy, rockets and the physics of it all.
Wednesday, October 7, 2026 (UTC)
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Asteroids & Planetary Defense
with Caleb MbekiFive DNA/RNA nucleobases recovered from returned Ryugu and Bennu asteroid samples
Ribose was also confirmed in Bennu material, with findings filed 1 October 2026.
Chicxulub crater samples continue to refine dinosaur extinction timelineCaleb MbekiTwo separate findings bracket the asteroid impact that ended the dinosaur ageCaleb MbekiUS council says asteroid impact energy tops out at 150 megatonsCaleb MbekiMercury may have shrunk 30% more than thought, study saysCaleb MbekiAsteroid CERNQ52 enters Earth atmosphere over Indian OceanCaleb Mbeki