The NASA gamma-ray spacecraft Fermi may have enabled scientists to "see" dark matter, the universe's most mysterious stuff, for the first time.

While the existence of extra dimensions is a cool idea, it's currently not supported by any evidence

The astronomers estimate that this galaxy will deplete itself of gas in only a few hundred million years.

Astronomers have unveiled a new catalog of massive galaxy clusters, revealing new insight on the evolution of the universe.

If the universe is expanding, then what is it expanding into, and what is it expanding from? Where's the edge of the universe, and where is its center?

An academic dives into using quantum physics to explore dark matter.

The team behind Europe's Euclid space telescope just published the world's most extensive simulation of the universe, which maps an astonishing 3.4 billion galaxies.

In a first, scientists have recreated the formation of the first ever molecules in the universe to learn more about early star formation.

The Vera C. Rubin Observatory has begun the 10-year-long Legacy Survey of Space and Time to investigate mysteries like the nature of dark energy.

What could we choose as the seven most remarkable celestial objects visible either with our eyes or with a small telescope?