Guinness World Records officially designated NASA’s Crawler Transporter 2 as the heaviest self-powered vehicle, weighing approximately 6.65 million pounds. During a March 29, 2023, ceremony at the agency's Kennedy Space Center in Florida, Guinness World Records presented a certificate to teams with the Exploration Ground Systems Program and Kennedy leadership. The crawler is responsible for carrying the Space Launch System rocket and Orion spacecraft for the Artemis missions to and from the launch pad.