Live coverage of the countdown and launch of an International Launch Services Proton rocket with the Yamal 401 communications satellite for Gazprom Space Systems. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
Mission Reports
Russians trace Soyuz launch abort to faulty sensor
Russian investigators have traced the cause of a dramatic Oct. 11 Soyuz launch abort to a “deformed” sensor in a system that controlled the separation of a strap-on first-stage booster from the rocket’s central core stage, triggering a dramatic emergency escape for the Russian mission commander and his NASA co-pilot, senior managers said Thursday.
Mission Reports
Live coverage: Proton rocket blasts off for first time in a year
A Russian Proton rocket launched at 0345 GMT Thursday (11:45 p.m. EDT Wednesday) from the Baikonur Cosmodrome in Kazakhstan with the EchoStar 21 communications satellite, a hefty 7.6-ton telecommunications station designed to support a mobile network in Europe. Managed by U.S.-based International Launch Services, the mission will take more than nine hours to deliver EchoStar 21 into a geostationary transfer orbit using five burns of the Breeze M upper stage engine.