Live coverage: 400th Proton rocket takes off with Russian satellite

A previously-flown Falcon 9 booster blasted off Friday from Vandenberg Air Force Base on California’s Central Coast with 10 new-generation communications satellites for Iridium. Launch occurred 8:27 p.m. EST (5:27 p.m. PST; 0127 GMT).

SpaceX launch crews rolled out the company’s next Falcon 9 rocket to pad 39A at the Kennedy Space Center in Florida, then lifted the two-stage launcher vertical for a hold-down engine firing Thursday in preparation for launch next week with a South Korean-owned commercial communications satellite.

A weather satellite to help civilian and military forecasters track storm systems over Russia’s vast territory launched from the Baikonur Cosmodrome on Friday aboard a Ukrainian-built Zenit rocket, perhaps on its final flight as Russian-Ukrainian relations sour and demand wanes for the 1980s-era launcher.