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 ...

If we could go back 101 years, we would encounter a time when scientists still thought the Milky Way was the entirety of our ...

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

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 ...

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 ...

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

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

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

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