One day before the scheduled launch, the United Launch Alliance Atlas V rocket with NASA’s Magnetospheric Multiscale (MMS) spacecraft onboard rolls out of the Cape Canaveral Air Force Station Space Launch Complex 41 Vertical Integration Facility to the launch pad, Wednesday, March 11, 2015 in Cape Canaveral, Florida. Launch of the Atlas V rocket is scheduled for March 12 and will carry the four identical MMS spacecraft into orbit to provide the first three-dimensional view of magnetic reconnection. Photo Credit: (NASA/Aubrey Gemignani)