Astronomers spotted nine galaxies with characteristics that have never been seen as a collection before. It's possible this ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old ...

The subatomic particles are incredibly numerous. About 1,000 neutrinos from stars other than the sun pass through a thumbnail ...

Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently ...

A potential new type of celestial object has all the makings of a normal small galaxy. It’s rich with the same hydrogen gas ...

Astronomers have revealed a new type of cosmic object called Cloud-9 — a dim, starless gas cloud anchored by a massive dark ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

Gas within the cluster, which existed merely 1.4 billion years after the Big Bang, is at least five times hotter than ...