The last Delta 4-Medium rocket lifted off from Cape Canaveral Thursday with a GPS navigation satellite for the U.S. Air Force.

Military officials in charge of the Eastern Range at Cape Canaveral project more than 50 launches from Florida’s Space Coast this year, with SpaceX responsible for most of the launch activity, the vice commander of the 45th Space Wing said this week.

A high-resolution camera on NASA’s Mars Reconnaissance Orbiter has spotted the Perseverance rover after landing on the Red Planet last month, showing the nuclear-powered robot sitting on the Martian surface with its supersonic parachute and other landing system components scattered nearby.