The fast-moving gas cloud could help explain the so-called missing satellite problem, if the object is what scientists think ...

Some galaxies that should have ceased forming stars long ago are defying expectations. Anew theory proposes the existence of ...

Astronomers from Swinburne University in Australia and elsewhere have employed the Keck II telescope to investigate the ...

Galaxies may not be as simple as "young and blue" or "old and red." A new idea from astrophysicist Charles Steinhardt proposes a third type: red star-forming galaxies that break the mold. These galaxi ...

When their end comes, the stars will explode in a blast making them around 200,000 times brighter than Jupiter does now.

Nicknamed the “Big Wheel,” a giant, spiral-shaped disk galaxy was spotted in an unusually crowded part of the early universe just two billion years after the big bang ...