"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those ...

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

"We were surprised by the streams of light that were visible near the center of the galaxies, as nothing similar has been ...

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 ...

These galaxies come in many forms. Some are filled with young, bright stars, while others have stopped forming new ones. The main difference is whether they still create stars or if their gas has been ...

A new study reports the first direct observation of merging star clusters in the nuclear region of dwarf galaxies. This ...

Astronomers thought they’d made a mistake when stars in a nearby galaxy didn’t seem to rotate — but the unusual pattern ...

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

Researchers mapped a far-infrared landscape brimming with nearly 2,000 galaxies. There may be "hidden galaxies" lurking just out of sight.

Euclid is on a quest to unravel one of the universe’s greatest mysteries: why it's expanding faster and faster. With help ...

Late-type dwarf galaxies include those still forming stars. These are often called dwarf irregulars or blue compact dwarfs, depending on how active their star formation is. On the other hand ...