The vast majority of model rockets go vaguely up and float vaguely downwards without a lot of control. However, ...

The Hubble Space Telescope has been expanding our knowledge of the cosmos for more than three decades, a spectacularly long run for any spacecraft. Nothing can stop the inevitable, though. NASA has ...

Hubble entered safe mode on April 23, but NASA reports the telescope is still in "good health." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.