The tower at Cape Canaveral Air Force Station a technician helps guide the second half of the fairing for installation around the Dawn spacecraft.

Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, a technician helps guide the second half of the fairing for installation around the Dawn spacecraft. The first half is already in place.The fairing is a molded structure that fits flush with the outside surface of the Delta II upper stage booster and forms an aerodynamically smooth nose cone, protecting the spacecraft during launch and ascent. Dawn is scheduled to launch between 7:25 and 7:54 a.m. on Sept. 26 aboard a Delta II rocket. Photo credit: NASA/Jim Grossmann