Workers inside the Multi-Purpose Logistics Module Leonardo complete installation of a laboratory rack.

Workers inside the Multi-Purpose Logistics Module Leonardo complete installation of a laboratory rack. The MPLM is the first of three such pressurized modules that will serve as the International Space Station’s “moving vans,” carrying laboratory racks filled with equipment, experiments and supplies to and from the Space Station aboard the Space Shuttle. Leonardo will be launched March 1, 2001, on Shuttle mission STS-102 On that flight, Leonardo will be filled with equipment and supplies to outfit the U.S. laboratory module, being carried to the ISS on the Jan. 19, 2001, launch of STS-98