Video: Liftoff of Atlas 5 with X-37B on program’s fourth flight

Eric Boe, one of three astronauts assigned to the first piloted test flight of a Boeing CST-100 Starliner commercial crew ship later this year has been removed from the mission due to unspecified medical issues, NASA announced Tuesday. He will be replaced by veteran astronaut Mike Fincke.

Vandenberg Air Force Base in California played host to the United Launch Alliance Atlas 5 rocket that sent the NROL-79 payload into orbit today.

The next flight of an Ariane 5 rocket, previously set for next week, has been delayed to no earlier than July 30 to review the readiness components it has in common with the Vega rocket after a launch failure earlier this month.