John Grunsfeld speaks about Orion’s science goals

NASA civil servants and the agency’s contractor work force are bracing for high winds and rain from Hurricane Dorian, securing rocket stages, spacecraft assembly areas and even hauling a 6.7-million-pound mobile launch tower, designed for the huge rocket being built for the Artemis moon program, back to the cavernous Vehicle Assembly Building for safekeeping.

Fueled segments of the solid rocket boosters that will lift off on the first flight of NASA’s Space Launch System have arrived at the Kennedy Space Center in Florida, but officials will hold off on stacking the boosters until the SLS core stage completes a crucial test-firing later this year.