X-ray observations of the cluster revealed that it is made up of two galaxy clusters merging along our line of sight.

Astronomer using Hubble discovers "young stars that are spiraling into the center of a massive cluster of stars in the Small ...

This faint galaxy is hard to look away from.

This NASA Hubble Space Telescope image features a galaxy cluster called CL0016+1609, or MACS J0018.5+1626, that is very ...

Explore 15 photos and facts about the Hubble Telescope, revealing its discoveries, missions, and breathtaking views of space.

In astronomers’ speak, the term galactic bulge stands for the dense cluster of billions of stars, many of them packed tightly ...

NASA offers a simple way to see which stunning celestial image the Hubble Space Telescope captured on your birthday.

The funny-sounding name offers new insights into galaxy formation.

Using the Hubble Space Telescope, astronomers have witnessed an infant star 20 times larger than the sun setting interstellar clouds ablaze. The source of this cosmic conflagration is a stellar jet ...

Ever since its launch to low orbit in 1990, the Hubble Space Telescope has gifted the science community and everyone else in the world with stunning photographs of outer space. It frequently ...

The new space telescope will work in tandem with the Hubble Space Telescope to uncover more secrets of the universe.