After three frustrating days of weather delays, the United Launch Alliance Atlas 5 rocket blasted off from Cape Canaveral at 4:44 p.m. EST (2144 GMT) today to send Orbital ATK’s commercial Cygnus cargo freighter to the International Space Station.

The nearly $1.9 billion BepiColombo mission to Mercury jointly developed by the European Space Agency and the Japan Aerospace Exploration Agency lifted off Friday night from French Guiana aboard an Ariane 5 rocket. Launch occurred at 9:45 p.m. EDT Friday (0145 GMT Saturday).

SpaceX’s first Falcon Heavy rocket took off on its inaugural test launch from NASA’s Kennedy Space Center in Florida at 3:45 p.m. EST (2045 GMT). The high-power launcher successfully boosted Elon Musk’s electric Tesla sports car into deep space as a shakedown for future Falcon Heavy missions.