Video: Atlas 5 launch with GOES-S viewed from KSC press site (members only)

Towering more than 30 stories tall, the mobile gantry structure at the Delta 4-Heavy rocket’s launch pad at Cape Canaveral was wheeled into position for liftoff of the triple-core launcher Thursday with a classified payload for the National Reconnaissance Office.

A United Launch Alliance Atlas 5 rocket emerged from its vertical hangar Tuesday for the 1,800-foot journey to pad 41 at Cape Canaveral Air Force Station, moving into position for liftoff Thursday with NASA’s Mars 2020 Perseverance rover.

Isolated camera views from various locations around Cape Canaveral and Kennedy Space Center show the United Launch Alliance Atlas 5 rocket lifting off with NASA’s Tracking and Data Relay Satellite-M.