The mobile launcher platform is being moved via the crawler-transporter underneath.
{"Image ImageDescription": "Cape Canaveral, Florida, April 13, 2009 ?? At NASA's Kennedy Space Center in Florida, the mobile launcher platform that was turned over from the shuttle program to the Constellation Program last month is being moved from Kennedy's Launch Pad 39B via the crawler-transporter underneath. The platform will be rolled into the Vehicle Assembly Building's High Bay 3 in preparation for the Ares I-X flight test this summer. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond."}