The Boeing 747 carrying the space shuttle Atlantis a top are set to depart the California desert for the Kennedy Space Center late this morning.
The ferry flight departure from Edwards AFB in southern California is currently planned for 11AM EDT, and should last two days. The pair were to have left earlier, however technicians "encountered some difficulties while trying to tighten a bolt on the right attach point for connecting Atlantis to its modified Boeing 747 aircraft", NASA stated this morning.
An overnight stay tonight will be based on weather conditions, but a Texas lay over is very likely.
Atlantis landed on May 24th following 13 days in space, due to bad weather along the Florida space coast.