@jeffw to Earth, Environment, and [email protected]English • 26 days agoAn asteroid wiped out the dinosaurs, not a comet, new study findsarstechnica.comexternal-linkmessage-square12arrow-up120arrow-down11
arrow-up119arrow-down1external-linkAn asteroid wiped out the dinosaurs, not a comet, new study findsarstechnica.com@jeffw to Earth, Environment, and [email protected]English • 26 days agomessage-square12
Sixth one is happening now.