Live coverage: Vega rocket launches with LISA Pathfinder

A United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 1:21 p.m. EDT (1721 GMT) with a satellite to replenish the U.S. Air Force’s Global Positioning System navigation network.

Launch of a SpaceX Crew Dragon capsule carrying four astronauts to the International Space Station has been delayed 24 hours to Friday because of bad weather in the Atlantic Ocean where the crew could be forced to ditch in an emergency, NASA announced Wednesday.

A wave of clock failures on Europe’s Galileo navigation satellites has not knocked any of the craft offline, but officials want to better understand the problem before launching more satellites into the fleet.