SM3A: A Radio Transmitter is being replaced
Date: 23 December 1999
Depicts: Replacing one of Hubble's radio transmitters
Astronaut John M. Grunsfeld, positioned on a foot restraint on the end of Discovery's remote manipulator system (RMS), prepares to replace a radio transmitter in one of the Hubble Space Telescope's electronics bay. Astronaut Steven L. Smith, payload commander, is in lower right.
Last Update: 1 September 2019