Video: Delta 4-Heavy tower rollback

Take another look back at the Orion spaceship’s launch atop a Delta 4-Heavy rocket on Dec. 5 with this gallery of NASA and United Launch Alliance photos.

President Donald Trump signed a new NASA authorization bill Tuesday, the first such space policy framework since early in the Obama administration, that largely continues the space agency’s efforts to foster a commercial economy in Earth orbit and explore deep space, with an eventual goal of landing humans on Mars.

The first flight test of Orion will be a two-orbit, four-hour shakedown cruise to check critical systems of the crew capsule.