The next great space telescope will study distant galaxies and faraway planets from an orbital outpost about a million miles from Earth. But first it has to be put together, piece by piece ...

NASA's Hubble Space Telescope managed to capture an incredible image of a galaxy that looks an awful lot like a bullseye. "This was a serendipitous discovery," said Imad Pasha, the lead researcher ...

Be sure to check out our best telescopes for viewing planets guide ... In the weeks and months that follow, Mars will become a fixture in the evening sky, but will recede from the Earth and ...