Live coverage: Maiden flight of Super Strypi launcher fails

A Northrop Grumman Cygnus supply ship carrying more than 7,200 pounds of provisions and experiments approached the International Space Station two days after its launch from Virginia, moving close enough for capture by the station’s robotic arm at 5:28 a.m. EST (1028 GMT) Monday.

A troublesome liquid oxygen valve on the Space Launch System’s first flight-rated core stage will keep NASA from performing a second test-firing of the rocket’s four main engines this week.

Officials hailed an action-packed three-minute test flight Tuesday over Cape Canaveral that exercised the Orion spacecraft’s launch abort rocket, a key safety system on the capsule NASA is developing to carry astronauts back to the moon.