Russia on Thursday sent into space a Proton rocket carrying a US telecom satellite, Echostar-21, the first launch in a year after an engine glitch sparked a probe into manufacturing flaws.
"The Proton-M was successfully launched at 6:45 am (0345 GMT)," from the Baikonur cosmodrome in southern Kazakhstan, the Russian space agency Roscosmos said.
"All the phases went off as scheduled," a statement said.
The Proton-M is the largest Russian carrier rocket and has been used since 1965. But it grounded Proton launches in June last year after a series of embarrassing setbacks.
Echostar-21 will provide telecommunications services in Europe and is set to be put into orbit at 1258 GMT, Roscosmos said.
Explore further: Russia postpones Proton-M launch over defect