This artist's concept depicts NASA's Space Launch System (SLS) solid rocket boosters firing their separation rockets and pushing away from the core stage, which continues toward space with the Orion spacecraft. The SLS will be the most powerful rocket in history. The flexible, evolvable design of this advanced, heavy-lift launch vehicle will meet a variety of crew and cargo mission needs. In addition to carrying the Orion Multi-Purpose Crew Vehicle, SLS will transfer important cargo, equipment and science experiments to deep space. It will allow astronauts aboard the Orion spacecraft to explore multiple deep-space destinations including an asteroid and ultimately Mars.