Stats: Atlas 5 and Delta 4 histories and backlogs (updated April 20)

These photos show Monday’s rollout of an Ariane 5 rocket on a 1.7-mile journey to its launch pad at the Guiana Space Center in South America.

Constructing the launch pad infrastructure for astronauts to board Boeing’s Starliner crew capsules atop United Launch Alliance Atlas 5 rockets, workers delivered the Crew Access Arm with its White Room to Cape Canaveral’s Complex 41 on Thursday, Aug. 11.

Boeing engineers have completed hotfire testing on a flight-like model of the Starliner crew capsule, clearing a major hurdle before a pad abort test and a demonstration flight to the International Space Station later this summer, Boeing announced Friday.