NASA's Kepler space telescope captured the light of a stellar explosion that occurred about 170 million years ago.
Stars are giant, luminous spheres of plasma. Galaxies consist of stars, stellar remnants, dust, gas, and dark matter, bound together by gravity. Learn more about stars and galaxies.
If you're a fan of really big numbers that don't actually tell you much about the world, Clemson University astrophysicist Marco Ajello has a great one for you: 4 x 10^84.
A new study reveals the origin of silica, and how a bunch of old supernovas got it all over everything.
Radio waves from our Milky Way galaxy are reflected across the surface of the moon in a stunning new image.
Scientists think there's a 'dark matter hurricane' coming, but it's definitely not going to kill you. It's actually kind of exciting.
Vega, historically one of the most-studied stars, is under scrutiny in modern times because it may have planets.
Astronomers think they have identified a star they believe to be about 13.5 billion years old, which would place its birth just after the Big Bang — and it's surprisingly close to us.
Scientists have identified the corpse of a galaxy that fell into the Milky Way about 10 billion years ago in what was likely the last major overhaul to our home galaxy during its development.
NASA's Kepler spacecraft hasn't discovered quite as many potentially habitable worlds as previously thought, new results from Europe's Gaia mission suggest.
The uncountable stellar multitudes of the globular cluster NGC 1898 shine in a newly released photo by the famous Hubble Space Telescope.
A team of astronomers noticed something interesting when they were sifting through the recently published second data release from the Gaia mission.
NASA's Hubble Space Telescope photographed a stunning galaxy cluster whose gravity acts as a natural lens, bending and blurring the view of galaxies that lie behind it.
Very close to the very beginning, scientists think, there were black holes. And now they know how to find them.