Live coverage: Ariane 5 rocket soars with Sky Muster, Arsat 2

A Japanese H-2A rocket is set for liftoff Tuesday on its first fully commercial mission, carrying a communications satellite for Telesat of Canada that will bridge the Atlantic Ocean with expanded coverage for television broadcasters and mobile users from Latin America to the Middle East.

Three days after launching from the Virginia coastline, an Orbital ATK Cygnus supply ship completed its final approach to the International Space Station on Thursday with more than 7,000 pounds of cargo and experiments. The automated freighter was captured by the station’s robotic arm at 5:26 a.m. EDT (0926 GMT).

The nine Merlin main engines at the base of a recycled Falcon 9 rocket booster ignited Thursday night for several seconds during a pre-flight test-firing on a Cape Canaveral launch pad, clearing a major hurdle ahead of a scheduled May 31 liftoff with a high-power communications satellite for SES.