Live coverage: Delta 2 launches

SpaceX successfully launched a Falcon 9 rocket Sunday at 7:21 p.m. PDT (10:21 p.m. EDT; 0221 GMT Monday) with SAOCOM 1A, a radar observation satellite for Argentina, then returned the booster to a landing at Vandenberg Air Force Base, California, for the first time.

Flight controllers at NASA’s mission control center in Houston have completed the robotic swap out of a failed power distribution unit outside the International Space Station, clearing a hurdle ahead of Friday’s predawn launch from Cape Canaveral of a SpaceX supply ship.

OneWeb’s next 36 internet satellites stacked on top of a Soyuz rocket lifted at 10:47 p.m. EDT Wednesday (0247 GMT Thursday) from the Vostochny Cosmodrome in Russia’s Far East.