New mineral samples from Mexico's Chicxulub crater are helping scientists better understand the massive meteor strike thought to have triggered the extinction of the dinosaurs.

Supose you enter a dark room in an unknown building. You might panic about monsters that could be lurking in the dark. Or you could just turn on the light, to avoid bumping into furniture. The dark room is the future of artificial intelligence (AI). Unfortunately…

How NASA Will Choose Astronauts for Its Incredible Journey to Mars

Gravity may have chased light in the early universe