STS-128 (ISS assembly flight 17A) is the next space shuttle mission to the International Space Station (ISS). It is expected to use Space Shuttle Discovery, and is planned for launch No Earlier Than (NET) August 25, 2009. The primary payload will be the Multi-Purpose Logistics Module Leonardo. The mission is scheduled to include three spacewalks to remove and replace a materials processing experiment outside ESA's Columbus module, and to return an empty ammonia tank assembly.
STS-128: Discovery "rollover"