Russian spacecraft Soyuz MS-26 carrying NASA astronaut Don Pettit and Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner ...

Imagine setting out for a springtime stroll. Not here on Earth but on some distant planet — call it Novathis-458b — orbiting ...

A new study suggests the universe may rotate -- just extremely slowly. The finding could help solve one of astronomy's biggest puzzles.

If you thought planets only circled stars in neat, flat disks, think again. Scientists have uncovered compelling evidence for ...