The most powerful configuration of United Launch Alliance’s Atlas 5 rocket blasted off April 14 from Cape Canaveral, hauling multiple U.S. Air Force satellites to a perch high above the equator after piercing a clear evening sky over Florida’s Space Coast with 2.6 million pounds of thrust.

A Vega rocket fired into space at 8:52 p.m. EST Monday (0152 GMT Tuesday) from the Guiana Space Center in South America, but the mission deviated from its planned trajectory. The rocket was boosting a Spanish Earth observation satellite and a French research payload into orbit.

The next Delta 4-Heavy rocket was raised vertical Friday at Cape Canaveral, signaling the start of a comprehensive series of pre-flight tests before liftoff next year with a top secret U.S. government spy satellite.