The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.

In the vastness of the Universe, some discoveries remind us how much we still have to learn. A recent study on Cosmic ...

For this reason black holes are invisible to the eye, as lightless as the empty, dark space surrounding them. Scientists know they exist not because they can see an actual hole, b ...

A supercluster is usually composed of hundreds or even thousands of clusters of galaxies, and these clusters are ...