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

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly ...

Our sun is a lonely star. At least half the stars in our galaxy have binary companions. This was nicely illustrated in the ...

This NASA/ESA Hubble Space Telescope image peers into the dusty recesses of the nearest massive star-forming region to Earth, ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

A newly released Hubble pic shows the galaxy LEDA 22057, where the supernova explosion occurred. The spiral galaxy's swirling ...

Proposed budget reductions for the Hubble Space Telescope would impact research and outreach as well as increase the risk to ...

Discover the fascinating story of the 'blue lurker,' a mysterious star in the M67 star cluster studied by NASA's Hubble ...

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 ...

Jupiter's Great Red Spot storm, which usually appears dark-red, can be seen shining a lurid blue color in an ultraviolet ...

Hubble uncovers the blue lurker star, offering rare insights into triple-star system evolution and stellar mergers ...