Live coverage: Cygnus rendezvous and arrival journal and webcast

Take a walk around NASA’s OSIRIS-REx spacecraft less than three weeks before its Sept. 8 launch on top of an Atlas 5 rocket. Rich Kuhns, the mission’s program manager from Lockheed Martin, points out some of the major features on the probe.

Northrop Grumman’s launch team aborted an Antares rocket launch from Virginia’s Eastern Shore minutes before liftoff Sunday evening. The rocket is set to loft a Cygnus cargo freighter toward the International Space Station with nearly four tons of supplies and experiments.

A commercial Cygnus supply ship left the International Space Station on Monday after delivering more than 5,000 pounds of cargo and experiments, ready to start a week of standalone operations to include a groundbreaking microgravity fire experiment and deployment of four commercial weather-monitoring CubeSats in orbit.