NASA's two crawler-transporters have spent the last forty-five years shuttle America's human spaceflight program on their backs. According to the U.S. space agency, the two crawlers have spent much of the year undergoing a major overhaul to keep the workhorse going for many years to come. With the first phase of modification work complete, the crawler-transporter recently went for a successful test drive that proved all upgrades are working as designed... To continue reading, subscribe to The Space Reporter today.
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