Watch the Falcon 9 launch from pad 39A

The U.S. military’s Space Development Agency, established in 2019 to fast-track new national security capabilities in orbit, plans to launch the first 10 satellites for a constellation of hundreds of missile tracking and data relay spacecraft Thursday on a SpaceX Falcon 9 rocket from California.

NASA managers held a flight readiness review Friday and cleared SpaceX to press ahead with work to ready a Falcon 9 rocket and Crew Dragon commercial ferry ship for launch March 2 on an unpiloted test flight to the International Space Station.

Space station commander Scott Kelly and Kjell Lindgren carried out a tedious seven-hour 16-minute spacewalk Wednesday, installing cables needed for a new docking mechanism, mounting insulation panels on a physics experiment to improve cooling and lubricating the latching mechanism of the station’s robot arm.