Live coverage: Proton launch runs into trouble

An Ariane 5 rocket journeyed from its assembly hangar to a nearby launch pad in French Guiana on Tuesday, a day before the heavy-duty launcher is scheduled for liftoff with the first in a new generation of high-capacity communications satellites for Intelsat.

China launched a Long March 4B rocket Saturday with a high-resolution mapping satellite for the Chinese Ministry of Natural Resources and two smaller spacecraft designed for astronomical observations and data relay services.

China’s second Long March 5 rocket fell short of orbit Sunday after lifting off from a spaceport in the southern Chinese province of Hainan, placing a cloud over the country’s plans to send a robotic sample return mission to the moon later this year.