Photos: Delta 4 lights up the sky for night owl launch

A forecast of low ceilings, thick clouds and rainy weather Thursday has led NASA and Northrop Grumman officials to push back the launch of an Antares rocket and a space station-bound supply ship from Virginia’s Eastern Shore to Friday morning.

China added two more satellites to the country’s Beidou navigation fleet — an analog to the U.S. military’s GPS network — with a successful Long March 3B rocket launch Sunday.

SpaceX called off a Falcon 9 countdown Wednesday due to the threat of lightning from thunderstorms along Florida’s Space Coast, pushing back the departure of a cargo mission for the International Space Station until Thursday.