A Kennedy Space Center employee monitors operations as teams with the agency’s Exploration Ground Systems and contractor Jacobs lift the Space Launch System (SLS) core stage – the largest part of the rocket – and prepare to move it over to High Bay 3 in the Vehicle Assembly Building, where it will be placed atop the mobile launcher in between the twin solid rocket boosters, on June 11, 2021. The 188,000-pound core stage, with its four RS-25 engines, will provide more than 2 million pounds of thrust during launch and ascent, and coupled with the boosters, will provide more than 8.8 million pounds of thrust to send the Artemis I mission to space. Under the Artemis program, NASA will land the first woman and first person of color on the Moon, as well as establish a sustainable presence on the lunar surface in preparation for human missions to Mars.