This is part of an even-larger "restructuring" at NASA.

The countdown clock is officially rolling at Kennedy Space Center in Florida, where four astronauts are preparing to take off on the mission of a lifetime — circumnavigating the moon and returning ...

CAPE CANAVERAL, Fla. -- Four astronauts embarked on a high-stakes flight around the moon Wednesday, humanity's first lunar voyage in more than half a century and the thrilling leadoff in NASA's push ...