Photos: Atlas 5 on the pad at sundown

Less than three months after rocketing into space, the commercial WorldView 4 Earth-imagery satellite has finished in-orbit testing and calibration to begin operations for DigitalGlobe.

The United Launch Alliance Atlas 5 rocket successfully flies to orbit Friday to deliver the U.S. Navy’s fifth Mobile User Objective System communications satellite.

All systems are now “go” for launch of the Air Force’s X-37B mystery spaceplane on May 20 from Cape Canaveral aboard an Atlas 5 rocket.