Photo Gallery: Delta first stage stacked

On-pad assembly of the United Launch Alliance Delta 2 rocket for the NPP climate and weather observatory began at Vandenberg Air Force Base's Space Launch Complex 2 with erection of the first stage on July 20.

See our Mission Status Center for the latest news on the launch.

Credit: NASA/VAFB

INTERSTAGE INSTALLED ATOP FIRST STAGE >

Space models