Astronauts repaired and upgraded NASA's Hubble Space Telescope over the course of five servicing missions from 1993 to 2009.

NASA’s Space Shuttle may be gone, but Dream Chaser is bringing the concept back - smaller, sleeker, and smarter. Designed for ...

In the years since, Hubble has gathered more than 1.6 million observations and 430 terabytes of data. The telescope has ...