Servicing Mission 3B, or SM3B, is the next in this series of successful missions. After SM3B, Hubble's discovery power will be increased by 10 times. It will receive a new scientific instrument, replacement parts, and even a new look - Hubble will be taken to the next level.

Launch Date: May 29, 2001 Crew: Scott D. Altman, Commander Duane G. Carey, Pilot John M. Grunsfeld, Payload Commander Nancy J. Currie, Mission Specialist James H. Newman, Mission Specialist Richard M. Linnehan, Mission Specialist Michael J. Massimino.