The first half of the United Launch Alliance Delta II payload fairing is secured around NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) on 4 September 2018, at Space Launch Complex 2 at Vandenberg Air Force Base in California. The satellite will carry the Advanced Topographic Laser Altimeter System (ATLAS). Photo courtesy of Alex Valdez, USAF 30th Space Wing.