Live coverage: SpaceX supply ship returns to Earth

SpaceX’s next Falcon 9 rocket rolled out of its hangar and up the ramp to launch pad 39A Sunday in preparation for liftoff on a two-day trek ferrying more than 6,400 pounds of supplies and experiments to the International Space Station.

A top secret payload developed in secrecy for the U.S. government is set to ride into orbit from Florida’s Space Coast aboard a SpaceX Falcon 9 rocket Thursday.

The Russian Soyuz MS-02 spacecraft and booster rocket were rolled out to the launch pad at the Baikonur Cosmodrome on Sunday in preparation for liftoff Wednesday on a two-day trek to the International Space Station.