Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Around 2015, astronomers took on the painstaking task of stitching together Hubble Space Telescope images of this galaxy, but that effort had focused on the galaxy's northern half. Still, however, the ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside our galaxy.

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

The Hubble Space Telescope image you see above is from last ... Blasting from the central galaxy — home to a black hole more than 400 million times our sun — is a powerful jet that could ...

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

"The biggest surprise was seeing the distinct spiral shape in the Hubble Space Telescope images ... rare and exciting to find a quasar-hosting galaxy with spiral arms and a black hole that ...

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 Hubble Space Telescope has produced the most comprehensive survey of the Andromeda galaxy, revealing new clues about its history. The Hubble survey, assembled from over 1,000 orbits and ...

NASA's Hubble Space Telescope has provided unprecedented details about the Andromeda galaxy's history and characteristics. Andromeda, a galaxy 2.5 million light-years from Earth, has been ...