Live coverage: Atlas 5 blasts off with Navy satellite

Liftoff of a previously-flown Falcon 9 rocket is set for 6:27 p.m. EDT (2227 GMT) Thursday from NASA’s Kennedy Space Center in Florida, the first time SpaceX has reused one of its first stage boosters on a second mission. Ground crews face a tight timeline to ready the rocket and the SES 10 communications satellite in time for a Thursday launch attempt.

An Indian Polar Satellite Launch Vehicle lifted off at 0000 GMT Wednesday (8 p.m. EDT Tuesday) carrying a radar observation satellite to collect imagery in support of military, intelligence and environmental agencies.

Japan’s third navigation satellite rode an H-2A rocket into orbit Saturday from the Tanegashima Space Center in southern Japan, one week after officials aborted a countdown to resolve a helium leak in the vehicle’s first stage. Liftoff occurred at 0529 GMT (1:29 a.m. EDT) Saturday.