An Ariane 5 rocket and four Galileo navigation satellites launched from French Guiana at 1125 GMT (7:25 a.m. EDT), beginning a four-hour climb into orbit more than 14,000 miles above Earth.

Sierra Nevada Corp. has booked at least six launches on United Launch Alliance’s new Vulcan Centaur rocket to carry Dream Chaser supply ships into orbit on cargo runs to the International Space Station beginning in 2021, becoming the first confirmed customer for ULA’s next-generation launcher.

Look back on last week’s blastoff of a SpaceX Falcon 9 rocket from Cape Canaveral with NASA’s Transiting Exoplanet Survey Satellite.