"At first, I thought I completely messed up during our research," Olivia Achenbach of the United States Naval Academy told ...

The night sky has always played a crucial role in navigation, from early ocean crossings to modern GPS. Besides stars, the ...

Leo P, a tiny galaxy, stopped making stars after the universe’s reionization. Unlike most galaxies, it restarted billions of ...

Looking at a distant galaxy means looking back in time.

In this special Hubble image 23 years in the making, the sparkling spiral galaxy UGC 10043 reveals the secrets of its ...

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

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

Surrounded by glowing discs of swirling gas, quasars emit immense light that can be seen across vast cosmic distances.

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 trillion stars. Now, astronomers have used the Hubble ...

"It has a striking evolved morphology: a quiescent-like classical bulge + star-forming stellar disk + grand-design spiral ...

This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.