关于这张图
John Giles, crawler element operations manager for NASA’s Exploration Ground Systems, holds a plaque near the odometer of the agency’s crawler-transporter 2, on Wednesday, Sept. 25, 2024, at NASA’s Kennedy Space Center in Florida, commemorating the milestone of 2,500 miles traveled since its construction in 1965. Crawler-transporter 2 reached the milestone while teams took it on a trip in preparation for supporting the roll of the mobile launcher from Launch Pad 39B back into the spaceport’s Vehicle Assembly Building ahead of the Artemis II launch. Built originally to transport massive Saturn …