Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

"I don't think anyone's made this connection between the surface fluid pattern and the interior properties of these planets." ...

A Simon Fraser University cosmologist believes his team's new research may bring them a step closer to cracking one of ...

Some stars appear to defy time itself. Nestled within ancient star clusters, they shine bluer and brighter than their neighbors, looking far younger than their true age. Known as blue straggler stars, ...