Demo
    A large rocket is being transported on a crawler next to a tall, white building, likely a vehicle assembly building, under a clear sky.
    The Biden administration is requesting $2.5 billion for NASA's Space Launch System rockets, the first of which rolled out to the launchpad March 17.
    A small airplane with NASA markings is parked outside a hangar. The plane is connected to ground support equipment.
    NASA's X-57 electric aircraft, pictured here during ground testing last July at NASA's Armstrong Flight Research Center, is scheduled to make its first flight this year.