Astrophysicists say our universe might be shaped like a three-dimensional donut, meaning you could point a spaceship in one direction and eventually return to where you started.

Atoms are the building blocks of all matter in the universe, but how many are there in the part of it we can see from Earth?

Researchers found evidence of an elusive magneto-rotational hypernova explosion for the first time ever.

Our planet is constantly moving, racing around the sun and spinning on its axis. But how fast does it move?

Tendrils of galaxies up to hundreds of millions of light-years long may be the largest spinning objects in the universe, a new study finds.

How big is too big?

The Dark Energy Survey just released its most comprehensive results. But did they really prove Einstein wrong?

Astronomers have identified the universe's oldest spiral galaxy from a blurry image captured by the ALMA observatory.

An international team of astronomers is on the hunt for objects that should be impossible.