Live coverage: Atlas 5 countdown and launch journal

A United Launch Alliance Atlas 5 rocket made its third trip to a Cape Canaveral launch pad Thursday, rolling into position for liftoff Friday afternoon with a classified payload for the U.S. government’s spy satellite agency.

Likened to raising a cellular tower 22,300 miles high, a United Launch Alliance Atlas 5 rocket will put the Navy’s fourth mobile communications satellite into space to expands the rugged smartphone system to global coverage.

The U.S. military’s X-37B spaceplane program will remain under Air Force management for the foreseeable future, and won’t join other Pentagon space programs turned over to the Space Force after the establishment of the new service branch last year.