Apollo 11 launch as broadcast live by NASA on July 16, 1969

Maintaining a brisk flight rate three days after its last launch, SpaceX sent a Falcon 9 booster powered by a reused first stage into orbit Wednesday evening from Florida with an Airbus-built communications satellite for SES and EchoStar.

Officials hailed an action-packed three-minute test flight Tuesday over Cape Canaveral that exercised the Orion spacecraft’s launch abort rocket, a key safety system on the capsule NASA is developing to carry astronauts back to the moon.

NASA’s Tracking and Data Relay Satellite-M, a communications router for the space station and dozens of science spacecraft, blasted off from Cape Canaveral at 8:29 a.m. EDT on Friday atop a United Launch Alliance Atlas 5 rocket.