Live coverage: Vega rocket launches with LISA Pathfinder

The first satellite in a new class of ultra-powerful communications satellites for Intelsat lifted off Wednesday aboard the first Ariane 5 flight of the year. Launch from French Guiana occurred at 2320 GMT (6:20 p.m. EST).

After 24 days at the International Space Station, SpaceX’s Dragon supply ship came back to Earth on Sunday with more than 5,400 pounds of cargo, human and animal research specimens, and other gear tagged for the trip home. Release from the station’s robotic arm occurred at 5:11 a.m. EDT (0911 GMT), and splashdown in the Pacific Ocean was a few minutes before 11 a.m. EDT (1500 GMT).

A massive spacecraft bound for Mars lifted off on a Russian Proton rocket Monday, riding more than 2 million pounds of thrust from the launcher’s six main engines through low clouds hanging over the Baikonur Cosmodrome in Kazakhstan.