NASA is building the Space Launch System, the world’s most powerful rocket capable of sending the Orion spacecraft, astronauts and supplies on deep space exploration missions to the Moon, Mars and beyond. In the latest installment of "No Small Steps," host Stephen Granade explains the steps NASA takes to build and test a rocket that can safely send humans on deep space missions. The rocket’s core stage manufacturing, assembly and testing is used as an example to show how NASA ensures every single part can operate in the extreme environment of space and be as safe as possible for human explorers. For more information on SLS, visit www.nasa.gov/sls

Credit: NASA