Live coverage: Proton rocket launches with Turksat 4B

SpaceX has postponed its next launch of Starlink internet satellites from Wednesday after a Falcon 9 booster missed a landing attempt on an offshore drone ship during an otherwise successful mission Monday night.

Lockheed Martin’s launch services team hopes to lure up to four commercial customers per year to fly on United Launch Alliance’s Atlas 5 booster as a stream of U.S. government missions is forecast to dry up starting in 2017, according to Lockheed Martin’s rocket sales chief.

The French military’s newest sharp-eyed optical surveillance satellite lifted off at 1637 GMT (11:37 a.m. EST) Wednesday from French Guiana aboard a Russian-built Soyuz launcher, marking Arianespace’s 11th and final launch of 2018. The Soyuz rocket and Fregat upper stage will place the CSO 1 spacecraft into orbit around 500 miles (800 kilometers) above Earth. Managers delayed the launch from Tuesday due to unfavorable high-altitude winds.