NASA moves moon rocket to launch pad
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With Artemis II, SLS could become the most powerful rocket ever to launch humans. Its four main engines burn roughly 700,000 gallons of ultra-cold fuel, producing enough oomph to keep eight Boeing 747s aloft. Future versions of SLS, if they come to fruition, could deliver even greater power.
SLS and the Orion spacecraft are fully stacked together inside NASA’s Vehicle Assembly Building (VAB) at Kennedy Space Center. Once final tests are complete, the launch vehicle will be rolled out onto the pad at Launch Complex-39A, which should take about 10 hours.