Two astronauts floated outside the International Space Station Thursday and installed two new cameras on the front of the lab complex that will provide views of commercial crew ships during final approach and docking. The spacewalkers also replaced a faulty high-definition camera and closed a door that was jammed open on an external instrument.

SpaceX raised a 215-foot-tall Falcon 9 rocket on pad 39A at NASA’s Kennedy Space Center in Florida this week, shortly after the launcher rolled out of the company’s hangar with a Crew Dragon spaceship to ferry four astronauts to the International Space Station.

NASA and Northrop Grumman are expected to base the launch of an air-dropped Pegasus rocket with a NASA science satellite from Cape Canaveral later this year, after originally trying to get the mission into space from a remote island in the middle of the Pacific Ocean.