Video: Last minute technical problem scrubs Falcon 9 launch

SpaceX’s Dragon supply ship returned to to Earth on Sunday with more than 3,800 pounds of NASA cargo, research specimens and other hardware. The commercial capsule was released from the International Space Station’s robotic arm at 4:40 a.m. EDT (0840 GMT), and splashdown in the Pacific Ocean west of Baja California occurred at approximately 10:15 a.m. EDT (1415 GMT).

Orbital ATK plans to launch its next two commercial resupply missions to the International Space Station on Atlas 5 rockets, grabbing a launch slot in March after a next-generation U.S. weather satellite was delayed, industry officials said.

SpaceX’s Falcon 9 rocket ignited its main engines at Cape Canaveral’s Complex 40 launch pad Thursday night, clearing a major hurdle before liftoff May 31 with the SES 12 communications satellite.