From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.

Exactly 35 years ago this week, the Hubble Space Telescope was released from the Space Shuttle Discovery cargo hatch. Four ...

John Grunsfeld has a model of the Hubble Space Telescope on his bookshelf. It's right next to a model of a NASA space shuttle, which delivered Hubble to space 35 years ago, and it's no secret why both ...

This gas needs an enormous amount of energy to shine — more than normal stars can supply. The discovery, based on data from ...

April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

In a close-up of the Rosette Nebula — a stellar nursery 5,200 light-years away — dark clouds of gas and dust are seen being carved by radiation from massive stars. A young star at the upper right is ...

A stunning new photograph of the Andromeda Galaxy has unveiled the vast, glowing gases that surround this majestic spiral ...