Watch a live view of the Falcon 9 rocket on the launch pad

The last unflown variant of United Launch Alliance’s Atlas 5 launcher — fitted with a five-meter fairing and a single strap-on solid rocket booster — will carry a pair of U.S. military space surveillance satellites toward geosynchronous orbit from Cape Canaveral late this year, according to a Space Force spokesperson.

Two Chinese astronauts are busy with medical experiments and other duties as they near the halfway mark of a month-long stay aboard the Tiangong 2 space lab, according to state media reports.

Relive Tuesday night’s spectactular liftoff of the United Launch Alliance Atlas 5 rocket carrying the Cygnus cargo ship with this series of replays.