Video: Change of command aboard International Space Station

Ready to double its Florida launch capacity with two pads, SpaceX is preparing to loft a reused robotic cargo ship toward the International Space Station Wednesday with a recycled Falcon 9 booster, debuting a rebuilt launch complex knocked offline more than a year ago in a fiery blast during pre-flight testing.

A refurbished robotic Dragon spaceship rocketed into orbit from Florida on Saturday aboard a SpaceX Falcon 9 launcher, hauling nearly 6,000 pounds of crew provisions and biological, astrophysics and space technology experiments on a two-day trip to the International Space Station.

Russian cosmonaut Alexey Ovchinin and NASA astronaut Nick Hague landed safely downrange in Kazakhstan on Thursday after a Soyuz booster failure cut short their ascent into orbit from the Baikonur Cosmodrome toward the International Space Station. The emergency landing was the first Soyuz in-flight abort since 1975.