Video: Change of command aboard International Space Station

Two days after a successful launch from California, SpaceX fired off another Falcon 9 rocket from Cape Canaveral Wednesday, this one carrying a Dragon cargo ship loaded with 5,660 pounds of equipment and supplies bound for the International Space Station.

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.

A Japanese H-2B rocket fired into orbit Tuesday from the Tanegashima Space Center with an automated cargo freighter loaded with more than 4.1 tons of batteries, experiments, spacewalk equipment, water and provisions for the International Space Station.