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 ...

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

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

Astronomers realized that a strange cloud of gas was actually a relic of the ancient universe which might help solve some of ...

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

Astronomers used to rely on chance to catch a glimpse of fleeting explosions in space. A fresh approach to watching these ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

As the James Webb Space Telescope reveals supermassive black holes are on the move – at two million miles per hour no less – ...

If dark stars existed, they would have been capable of forming in the universe before ordinary stars could have formed. When ...