Live coverage: European environmental satellite launches from Russia

SpaceX has delayed the launch of the SES 12 communications satellite until shortly after midnight Friday at Cape Canaveral, allowing teams additional time to complete pre-launch vehicle checks and wait for improved weather conditions. The launch, which was previously set for Thursday, is expected around 12:29 a.m. EDT (0429 GMT) Friday.

A Russian Progress cargo spacecraft laden with 5,300 pounds of fuel and supplies blasted off from the Baikonur Cosmodrome in Kazakhstan on Saturday, riding a Soyuz rocket smoothly into orbit on the first of two resupply launches heading for the International Space Station in the next two days.

Running two days later after a last-minute abort Sunday, a Russian Progress resupply and refueling freighter lifted off in a blanket of fog Tuesday from the Baikonur Cosmodrome to deliver three tons of cargo, propellant and water to the International Space Station.