What is STS-121?
STS-121 was a 2006 NASA Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Discovery.
What is the STS-300 mission?
STS-300 was the designation given to the Contingency Shuttle Crew Support mission which would have launched in the event Space Shuttle Discovery became disabled during STS-114 or STS-121. The rescue mission for STS-114 was a modified version of the STS-121 mission, which would have involved the launch date being brought forward.
Who are the astronauts on STS-121?
(L-R) Wilson, Fossum, Lindsey, Sellers, Kelly, Reiter, Nowak. STS-121 was a 2006 NASA Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Discovery.
What happened to the STS-121 test flight?
The STS-121 test flight mission was originally to be flown aboard Atlantis in September 2005, after Space Shuttle Discovery flew STS-114, but a problem with the landing gear of Atlantis moved Discovery ahead to fly STS-121. After the return of Discovery to California following the completion of STS-114, scheduling again changed.