By Steve Nesius and Steve Gorman CAPE CANAVERAL, Florida, Feb 13 (Reuters) - A SpaceX rocket soared into orbit from Florida early on Friday with a crew of two U.S. NASA astronauts, a French astronaut and a Russian cosmonaut headed to the International Space Station for an eight-month science mission in microgravity.

NASA and SpaceX will launch a four-astronaut relief crew to the International Space Station early Friday, Feb. 13, to return the lab to a full seven-person population.