Snapshots from Atlas 5 launch

NASA declared the Spitzer Space Telescope’s 16-year mission complete Thursday after sending final commands for the spacecraft to enter hibernation as it drifts farther from Earth.

Views from an airliner, close-up high-speed launch pad cameras, and photographers around the Guiana Space Center in the jungle of South America show the twilight launch of a European Ariane 5 rocket Saturday with three commercial satellites heading for orbits more than 22,000 miles over the equator.

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.