Engineers and scientists at NASA's Goddard Space Flight Center in Greenbelt, Maryland, completed tests this month on a second early ...

Primordial black holes could rewrite our understanding of dark matter and the early universe. A record-breaking detection at ...

A recent study proposes that gravity, the force shaping galaxies and anchoring planets, might not be fundamental after all.

Time has an arrow: It only ever seems to move in one direction. The future is always unknown to us, while the past forever remains locked and inaccessible. And yet, the vast majority of the laws of ...