Decades in the making, a space probe that delves into Albert Einstein's general theory of gravitation remains grounded on Earth, caught in its own space-time continuum of technical snags, costly ...

NASA has paused science activities for the Hubble Space Telescope after one of its three gyroscopes sent faulty readings back to Earth. The space telescope, which has been delivering stunning views of ...

An image of the Hubble Space Telescope hovering in Earth's orbit. Update for Dec. 13: This post has been updated to include the most recent information from NASA. Following a string of setbacks ...

An unstable gyroscope has forced NASA's Hubble Space Telescope to enter safe mode, resulting in a temporary suspension of its scientific observations. Reading time 2 minutes NASA is addressing an ...

After more than three decades of revolutionary cosmic discovery, the Hubble Space Telescope is getting a new spin on its operations—and entering what may be the twilight of its epochal mission. Hubble ...

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.