Video: Expedition 49 crew launches to the International Space Station

With five side-mounted solid rocket boosters for added power, a United Launch Alliance Atlas 5 rocket successfully deployed the U.S. Navy’s fifth MUOS mobile communications satellite.

SpaceX’s launch director halted a countdown Tuesday to replace a sensor on the upper stage of a Falcon 9 rocket set to blast off with the GovSat 1 communications craft, the product of a joint venture between the commercial satellite operator SES and the government of Luxembourg.

Russian cosmonauts Alexander Misurkin and Anton Shkaplerov floated outside the International Space Station on Friday and installed an upgraded electronics box on a high-gain communications antenna at the aft end of the Zvezda service module.