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 ...

"The question 'Are we alone?' is one of the most significant questions, not just in the history of science, but in the ...

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

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

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

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 captured imagery of the most distant single star found yet. It took the light from the star 12 ...

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

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

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

A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope.