NASA’s oft-delayed Space Launch System, or SLS, is finally ready for launch. The megarocket is designed to launch vehicles into deep space, and its first mission is called Artemis I. NASA is sending an uncrewed Orion space capsule deep into space and into a long orbit around the Moon before coming back to Earth.
The rocket is designed to usher in a new generation of deep space exploration and may eventually carry human explorers farther…