PASADENA, Calif. — Climate cycles persisting for millions of years on ancient Mars left a record of rhythmic patterns in thick stacks of sedimentary rock layers, revealed in three-dimensional detail ...

An international team of researchers has found it likely that bipedal dinosaurs swung their tails as they walked and ran to maintain their balance. In their paper published in the journal Science ...

"Blink and you'll miss it" isn't only for eyelids. The human brain also blinks, dropping a few frames of visual information here and there. Those lapses of attention come fast -- maybe just once every ...