From NASA Kennedy Space Center’s Press Site lawn near the iconic countdown clock, storm clouds can be seen rolling in over the Vehicle Assembly Building (VAB) on July 28, 2020. Standing at 525 feet tall, this facility is capable of hosting multiple varieties of rockets and spacecraft at the same time. Currently, the VAB is being utilized to process and assemble the agency’s Space Launch System (SLS) rocket for Artemis missions to the Moon and beyond to Mars. Artemis I – the first launch under the agency’s Artemis Program – will test SLS and Orion as an integrated system prior to crewed flights to the Moon.