Teams with NASA’s Exploration Ground Systems and contractor Jacobs prepare to lift the Space Launch System (SLS) core stage and transfer 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, at NASA’s Kennedy Space Center in Florida on June 10, 2021. The 188,000-pound core stage, which is the largest part of the rocket, 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. The first in an increasingly complex series of missions, Artemis I will test SLS and the Orion spacecraft as an integrated system ahead of crewed flights to the Moon.