Chicxulub asteroid type identified: a new Science Advances paper concludes the dinosaur-killing impactor was a CO chondrite — ...

The asteroid that wiped out the dinosaurs was likely an exceptionally rare CO chondrite from a distant region of the solar system. Its unusual chemistry suggests that planet-cooling dust and debris, ...

The Hillsborough meteorite belongs to a rare class of rocks from space, according to a new study. It holds amino acids and ...

Researchers found this material on the meteorite, which entered Earth's atmosphere moving faster than the speed of sound.