Microorganisms—bacteria, viruses and other tiny life forms—may drive biological variation in visible life as much, if not ...

NASA's plagued Space Launch System rocket, which is being developed to deliver the first astronauts to the lunar surface in ...

Could social bonds be the key to human big brains? A study of the fossil teeth of early Homo from Georgia dating back 1.77 million years reveals a prolonged childhood despite a small brain and an ...