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Block 1 is the first version of the Space Launch System, a super heavy-lift launch vehicle used by NASA. It consists of two solid rocket boosters, a core stage with four RS-25 engines, and an Interim Cryogenic Propulsion Stage.
Learn about the history and current development of rockets that can lift more than 50 metric tons to low Earth orbit. Compare the features and missions of flown and under development super heavy-lift launch vehicles, such as Saturn V, Energia, Falcon Heavy, SLS, Starship, and Long March 9.
The Space Launch System (SLS) is a super heavy-lift launch vehicle for human spaceflight missions to the Moon and beyond. Learn about the one successful launch, the four planned Artemis missions, and the proposed and cancelled non-Artemis missions for SLS.
Sodium laureth sulfate (SLES) is a surfactant derived from palm kernel oil or coconut oil. It is used in many personal care products and herbicides, but it can cause irritation and 1,4-dioxane contamination.
Artemis IV is a planned mission of the NASA-led Artemis program.The mission will include the fourth use of a Space Launch System (SLS) launch vehicle, will send an Orion spacecraft with four astronauts to the Lunar Gateway space station, install a new module on the Gateway, and conduct the second lunar landing of the Artemis program.
The Space Shuttle Solid Rocket Booster (SRB) was the first solid-propellant rocket to be used for primary propulsion on a vehicle used for human spaceflight. The SRBs were powered by a mixture of aluminum metal and ammonium perchlorate, which provided 85% of the thrust at liftoff and for the first two minutes of ascent.
The Exploration Upper Stage (EUS) is a rocket stage under development that will be used for future flights of NASA's Space Launch System (SLS). Used on SLS Block 1B and Block 2, it will replace the SLS Block 1's Interim Cryogenic Propulsion Stage.
The core stage is the main stage of the American Space Launch System rocket, powered by 4 RS-25 engines and liquid hydrogen and oxygen propellants. It lifts the rocket to an altitude of 162 km before separating and reentering the atmosphere over the Pacific Ocean.