Who knew stars could be pristine?

After the Big Bang, the Universe entered a long, dark period before the first stars formed. During this era, hydrogen emitted a faint radio signal that still echoes today. New simulations show this ...

Astronomers have confirmed the earliest barred spiral galaxy in the universe, a Milky-Way-like structure that existed just 2 ...

It's one of astronomy's great mysteries: how did black holes get so big, so massive, so quickly. An answer to this cosmic ...

An extremely early Type II supernova explosion, named after the Titan goddess of dawn in Greek mythology, occurred just 1 ...

The "Cosmic Grapes" galaxy formed just 900 million years after the Big Bang, revealing a never-before-seen structure.

Dark matter, the invisible substance that shapes the Universe, may have had a far more dramatic beginning than scientists once believed.

But only in the last 70 years have we known for certain they were there. In 1956, physicists Clyde Cowan and Frederick Reines ...

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

We could go out with a crunch, and not a bang. Contrary to popular belief, our universe may not be constantly expanding after all. A groundbreaking study by South Korean researchers suggests that dark ...

Known as dinosaur stars for both their primeval nature and their immense size, Population III stars existed only when the ...