Photos: Atlas 5 rocket aims for International Space Station

A heavy-lift Long March 5 rocket propelled China’s first Mars landing mission toward the Red Planet on Thursday after launching from a seaside spaceport on Hainan Island, the second of three international Mars probes expected to depart planet Earth this month.

NASA has a builder to construct a five-ton spacecraft to catch up with the aging Landsat 7 Earth observation satellite and refuel it in 2020, employing robotic tools mastered in years of rehearsals on the International Space Station.

A payload critical to the nation was mounted atop its Atlas 5 rocket this morning in preparation for next week’s launch into orbit.