While #NASA's :nasa: #SpaceShuttle #Endeavour was returning after its mission carry the #AMS02 instrument that is being used to look for evidence of #darkmatter, #Atlantis was being readied to carry the a load of supplies to the #ISS /International Space Station.
Atlantis and its stack were rolled out of the #VAB /Vehicle Assembly Building’s doors, the largest in the world, and to LC-39A on the #crawlertransporter, carrying the #ShuttleStack and making an incredible average speed of 1 mile per hour.
https://heronfox.pixels.com/featured/atlantis-exits-the-worlds-largest-doors-heron-and-fox.html