Vice President Mike Pence talks with Marshall Space Flight Center Director Todd May and Congressman Robert Aderholt (R-AL) (left) about NASA’s Space Launch System, the agency’s new deep space rocket. May explained progress being made on the rocket. The Vice President visited NASA Marshall in Huntsville, Alabama on Sept. 25, 2017, and saw SLS core stage engine section test hardware (on the right). The engine section is the bottom of the core stage where the four RS-25 engines attach and produce two million pounds of thrust. The SLS engine section is undergoing structural testing.