Live coverage: Proton rocket blasts off for first time in a year

Spaceflight Now members can watch a live view of Cape Canaveral’s Complex 40 launch pad, where a Falcon 9 rocket is set to undergo a static fire test Thursday in advance of a commercial satellite launch May 31.

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.

A Soyuz rocket added a new satellite to Russia’s Glonass navigation network Friday with an on-target delivery nearly 12,000 miles above Earth.