Researchers just uncovered more about the asteroid that killed the dinosaurs 66 million years ago - Findings really ...
The rover's study of ancient rocks reveals how asteroid impacts shaped soil layers on Mars.
A rare CO chondrite meteorite was the probable impacter that struck Earth 66 million years ago, wiping out 75% of Earth's ...
This photo gallery, curated by photo editors Patrick Sison and Courtney Dittmar, highlights some of the most compelling images worldwide published by The Associated Press in the past week.