Centaurus A: NGC 5128 is a galaxy in constellation Centaurus, discovered in 1826 by Scottish astronomer James Dunlop. Messier ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

Astronomers have identified what could be the largest structure ever observed in the known universe—a vast network of galaxy ...

Galaxies are astronomical objects composed of billions or even trillions of stars. Our Earth and solar system are just a tiny ...

Set against a backdrop littered with tiny pinpricks of light glint a few, brighter stars, this is NGC 1858, a 10-million-year ...

Our modern era of space observation and exploration deepens our connection with the universe—and with each other. When NASA ...

Scientists have discovered an enormous radio galaxy 32 times the size of the Milky Way. They nicknamed it "Inkathazo," or ...

Our solar system resides in a galaxy called the Milky Way, stuffed with between 100 billion and 400 billion other stars, many of them with planets of their own. The Milky Way got its name from the ...

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

A trio of astronomers from the University of Tokyo and Niigata University have found what they describe as "peculiar embedded ...

Sometimes, if the night is dark and clear enough, you can look up and see the Milky Way in its arc across ... How our own ...