In August 2001, space shuttle Discovery and STS-105 landed at NASA's Kennedy Space Center following a successful 12-day mission to the International Space Station (ISS). This was the 11th ISS assembly flight. The goals of STS-105 were rotating the Expedition Two crew with the Expedition Three crew and delivering supplies using the Italian-built Multipurpose Logistics Module, Leonardo. Here, the STS-105 crew departs the orbiting laboratory. Today, the Payload Operations Integration Center at Marshall Space Flight Center serves as "science central" for station, working 24/7, 365 days a year in support of the orbiting laboratory's scientific experiments. Credit: NASA #nasa #iss nasakennedy NASA_Marshall #station #tbt #tbthursdays #nasahistory