Cambridge University researchers have uncovered evidence that two distinct populations of ancient hominins, separated for ...

The finest ever map of the cosmic microwave background - the faint evidence of the universe's early form - has yielded ...

New Southwest Research Institute-led modeling indicates the main belt asteroid (52246) Donaldjohanson may have formed about 150 million years ago when a larger parent asteroid broke apart; its orbit ...

The spacecraft bringing back stranded astronauts Sunita Williams and Butch Wilmore to Earth has undocked - beginning their departure from the International Space Station after being stuck in space.