Live coverage: Proton rocket blasts off on lengthy 15-hour mission

Two pioneering communications satellites purely powered by plasma rocket thrusters lifted off from Cape Canaveral aboard a Falcon 9 launcher Wednesday, starting missions to broadcast video across Asia and Latin America, and improve navigation for airplanes crossing the United States.

A Soyuz FG rocket thundered to life and shot into orbit smoothly Monday carrying three crew members on a six-hour flight to the International Space Station. The problem-free ascent came less than two months after an Oct. 11 launch abort that forced a different crew to carry out safe-but-scary emergency landing.

Returning to service after a six-year hiatus, Orbital ATK’s revamped Minotaur-C rocket soared into space Tuesday from California’s Central Coast with 10 commercial Earth-imaging spacecraft for Planet, a San Francisco-based company with a globe-spanning satellite fleet mapping the world’s land masses every day.