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 ...

Trouble with one of the Hubble Space Telescope's three remaining gyroscopes ... all three of the six older-model gyroscopes had failed. One of the remaining three units, gyroscope No. 3, began ...

The Hubble Space Telescope has been ... the top pick in our best beginner's telescope guide. Finally, did you know you can launch your own SpaceX rocket? Model rocket maker Estes' stunning scale ...

WASHINGTON — The Hubble Space Telescope marked its 35th anniversary this week and NASA celebrated by releasing a series of stunning new photos from the observatory. With nearly 1.7 million ...