Image: New Antares rocket rolls out at NASA wallops

Orbital ATK's Antares first stage with the new engines is rolled from NASA Wallops Flight Facility's Horizontal Integration Facility to Virginia Space's Mid-Atlantic Regional Spaceport Pad-0A on May 12, 2016, in preparation for the upcoming stage test in the next few weeks.

The team will continue to work meticulously as they begin final integration and check outs on the pad and several readiness reviews prior to the test.

The window for the stage test will be over multiple days to ensure technical and weather conditions are acceptable.