After Hubble’s important gyroscopes began to fail, a Hubble emergency was declared and Servicing Mission 3 was quickly split into two separate launches. So on December 19, 1999, the brave crew of Space Shuttle Discovery lifted off to switch out the broken gyros and get Hubble working again.
To celebrate that important moment in history, NASA has gathered the footage of Servicing Mission 3A for posterity's sake, and archived hours of footage for all to use.
Credit: NASA’s Goddard Space Flight Center / Paul Morris Music Credits: “Oceanic” by Bob Mitchell [PRS], James Patrick, Kaleth [PRS], and Jez Pike [PRS] via Universal Production Music