Live coverage: Falcon 9 disintegrates after launch

A Falcon 9 rocket launching an Argentine Earth-observing satellite streaked across the skies of Southern California on Sunday night, then its booster stage returned to Vandenberg Air Force Base for an on-target landing, the first by SpaceX on the West Coast.

The U.S. Air Force on Monday certified the latest version of SpaceX’s Falcon 9 rocket, featuring higher-thrust engines, enlarged fuel tanks and a super-chilled propellant mixture, for launches of the military’s most valuable satellites.

A Soyuz spacecraft undocked from the International Space Station on Thursday to bring home NASA flight engineer Jessica Meir, astronaut Andrew Morgan and Russian commander Oleg Skripochka. The Soyuz MS-15 spacecraft departed the station at 9:53 p.m. Thursday (0153 GMT Friday) and landed on the steppes of Kazakhstan at 1:16 a.m. EDT (0516 GMT).