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, ...

This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two ...

The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 trillion stars. Now, astronomers have used the Hubble ...

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

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the ...

These massive currents carry material on a journey through and around star-forming galaxies before they settle and form stars ...

Spacewalks, also known as EVAs (extravehicular activities), are a crucial part of space exploration. From routine maintenance to historic firsts, here are 10 Most Iconic Spacewalks.

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

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

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

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