Watch live video of the Solar Orbiter launch pad at Cape Canaveral (members only)

The detective work into the Atlas 5 rocket’s first stage performance trouble during the Cygnus cargo ship launch a week ago has implicated the fuel system as the likely culprit for using up the liquid oxygen supply too quickly.

Skywatchers and early risers across Florida enjoyed dazzling views of a United Launch Alliance Atlas 5 rocket climbing into space Thursday morning from Cape Canaveral with a U.S. military communications satellite.

Officials have delayed the launch of a United Launch Alliance Atlas 5 rocket with the European-built Solar Orbiter spacecraft from Cape Canaveral by two days to Feb. 7, a ripple effect from time spent fixing a minor issue last week during a launch vehicle countdown dress rehearsal.