Photos: Delta 4’s foggy launch

Russian and European teams at the Guiana Space Center in South America plan to detach a UAE spy satellite from its Soyuz launcher to replace the rocket’s Fregat upper stage, forcing a likely delay until April from the mission’s original launch date of Friday.

Follow the Delta 4 rocket’s ascent into orbit from Cape Canaveral’s Complex 37 launch pad with the U.S. Air Force’s WGS 7 communications satellite.

An upgraded model of SpaceX’s Falcon 9 rocket fired into orbit early Sunday from Florida’s Space Coast, hoisting a record-setting 7.8-ton communications satellite for Telesat toward its planned perch more than 22,000 miles over the equator.