Live coverage: Vega rocket launches with LISA Pathfinder

A Boeing-built communications satellite lifted off at 7:21 p.m. EDT (2321 GMT) Monday on top of a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center in Florida. The spacecraft will add to Inmarsat’s Global Xpress network linking airplanes, ships and other mobile terminals with broadband Internet and data services.

A United Launch Alliance Atlas 5 rocket topped by the Air Force’s X-37B miniature space shuttle blasted off from Cape Canaveral’s Complex 41 today to deliver the spaceplane into orbit.

An Ariane 5 countdown in French Guiana was aborted Tuesday with the European-made rocket’s main engine already running, postponing the launch of two commercial communications satellites until engineers can resolve the problem.