The photograph of the Milky Way was taken by Oisin McDonnell, who is based in South Australia. He shared the image in a ...

An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky ...

The Andromeda Galaxy is the nearest large star-city to our own Milky Way, and it only appears dim because it lies over two ...

Stars have a life and death-cycle. Those that are about eight times more massive than the Sun explode as supernovae at the ...

How would you like to see the farthest thing visible to the naked eye? It’s possible, but you’ll need to bundle up and sit ...

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How would you like to see the farthest thing visible to the naked eye? It’s possible, but you’ll need to bundle up and sit ...

The spiral arms of nearby galaxy Messier 81 is captured by NASA's Spitzer Space Telescope. This galaxy is easily visible ...

Every constellation has something within its borders worth tracking down, if you just look hard enough. Here are five to start with.

Comet Tsuchinshan-ATLAS didn’t quite live up to the expectations of being the “comet of the century” and during November its ...