We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

Laraine Newman and Jane Curtin Honor Late Costar and Friend Gilda Radner During “SNL ”50th Anniversary Special How clever ...

NASA's flagship space telescope captured flares from the disk of superheated material around the black hole, revealing the dynamic—and explosive—physics at our galaxy's core.

Astrophysicists have observed our central supermassive black hole. They found the accretion disk is constantly emitting flares without periods of rest. Shorter, faint flares and longer, bright flares ...