Huge NASA rocket reaches 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.
The process began at 7 a.m. The 11-million-pound Artemis II SLS rocket and Orion Spacecraft have to move just four miles, but according to NASA, the process could take up to 12 hours, because it can only move at a 1 mph pace.