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 ...

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

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

This NASA Hubble Space Telescope image shows the planet Jupiter in a color composite of ultraviolet wavelengths. Released on ...

The Helix Nebula is an example of a planetary nebula. Though it looks like a bubble or eye from Earth’s point of view, the Helix is actually a trillion-mile-long tunnel of glowing gases. In its center ...

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

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

"We have by and large been ignoring triples in models and simulations — we're just starting to understand how these types of ...

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

Hubble's first gigapixel panorama of the Andromeda Galaxy was published exactly ten years ago. This has now been ...

Behold, the giants! The Hubble Space Telescope has completed a decade of observing Jupiter, Saturn, Uranus and Neptune.