Space Shuttle Project

The Space Shuttle Atlantis (STS-45) roars into space in this photo showing a close-up of the Solid Rocket Boosters (SRBs) and the external tank. Atlantis' mission included experiments on the Atmospheric Lab for Applications and Sciences (ATLAS). ATLAS-1 measures long-term variability in the total energy radiated by the sun and determines the variability in the solar spectrum.