NASA Tests New Space Launch System Booster Rocket [VIDEO]
It's the most powerful rocket booster ever made! It was built to get NASA's Orion spacecraft into deep space, even all the way to Mars. It's an impressive test that shows just how big and powerful the S.L.S (Space Launch System) rocket is. I can't image seeing it vertical and attached to a spacecraft. The flame tail and exhaust it would create would be thousands of feet long!