Needham native and astronaut Sunita Williams, along with fellow astronaut Butch Wilmore, spoke Monday for the first time ...

Life on Earth had to begin somewhere, and scientists think that “somewhere” is LUCA—or the Last Universal Common Ancestor.

NASA astronauts Butch Wilmore and Suni Williams, who spent nine months in space, spoke to Fox News anchor Bill Hemmer in their first interview since returning to Earth.

New research led by a York University professor sheds light on the earliest days of Earth's formation and potentially calls ...

Well before the age of dinosaurs, these things ruled Earth. Though scientists still debate where exactly to place them on the tree of life, the organisms of this era may be some of the first ...