Watch replay of Falcon 9 launch as seen from the press site

Three spacecraft built in Europe and Japan have completed their final joint tests to ensure they are ready for departure to Mercury on an Ariane 5 rocket late next year on the nearly $1.9 billion BepiColombo mission to survey the solar system’s innermost planet.

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.

Views from an airliner, close-up high-speed launch pad cameras, and photographers around the Guiana Space Center in the jungle of South America show the twilight launch of a European Ariane 5 rocket Saturday with three commercial satellites heading for orbits more than 22,000 miles over the equator.