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I want you to paraphrase the following :

Americas Space Shuttle Program also known as Space Transportation System (STS) was started in 1981 and ended in 2011. The main task of this program was construction of International Space Station (ISS); carry supplies for ISS; and deployment, retrieval, and repair of satellites; and observe Low Earth Orbit (LEO). This was accomplished with the help of a space shuttle orbiter which can be launched into low orbit and be landed on ground after the completion of mission. The winged space shuttle generally carries two to eight astronauts and mission specific payload. After the completion of the mission the shuttle moves itself out of the orbit with the help of Orbital Maneuvering System and re-enter Earth’s atmosphere. During decent the shuttle functions as a re-entry vehicle and glider. All the space shuttles are landed either at Kennedy Space Center or Edwards Air Force Base.
> STS-135 was the final mission of the Space Shuttle Program to deliver payload to the ISS. It was launched on eighth of July form Kennedy Space Center and after finishing its fourteen days flight, it landed at Kennedy Space Center on twenty-first of July 2011. It used space shuttle “Atlantis” as spacecraft and four crew members were onboard. The crew consisted of Christopher Ferguson (Commander), Douglas Hurley (Pilot), Sandra Magnus (Mission Specialist 1) and Rex Walheim (Mission Specialist 2). The payload for this mission consisted of Multi-Purpose Logistics Module (MPLM) and a Lightweight Multi-Purpose Carrier (LMC) which were needed to be delivered to ISS. It also carrier a miniaturized satellite called Picosatellite Solar Cell Testbet 2 (PSSC-2), which was launched in to the orbit from the cargo bay of shuttle on its thirteenth day of flight.
> MPLM is a large pressurized container used on space shuttle missions to transfer cargo to and from ISS. It is used for restocking ISS with supplies and equipment, and store finished experiment and wastes which are carried back to earth with the help of space shuttles. For STS-135 MPLM Raffaello was used and had the majority of the payload. This was fourth trip for Raffaello to ISS and twelfth use of MPLM. The previous MPLM missions delivered large compartments and devices to outfit the space station laboratories, while Raffaello’s mission was to deliver only bags and supply containers. The MPLM was filled with sixteen resupply racks, eight Resupply Stowage Platforms (RSPs), two Integrated Stowage Platforms (ISPs), sic Resupply Stowage Racks (RSRs) and one Zero-G Stowage Rack (ZSR). The MPLM was lifted out of Atlantis on fourth day of the flight. After completing cargo transfer on to ISS it was loaded with unneeded equipment and ISS waste. Also the problematic Common Cabin Air Assembly (CCAA) Heat Exchanger (HX) was stowed inside MPLM to return it to ground. On the 11 day of flight, the MPLM was secured in the cargo bay of Atlantis.
> LMC carried on STS-135 had a Robotic Refueling Mission (RRM) which was delivered to the station. RRM was planned to demonstrate the technology and tools to refuel satellites in orbit with help of a robot. The failed External Thermal Cooling System (ETCS) Pump Module (PM) was loaded on LMC to perform failure analysis on ground. The space shuttle carried several items of downmass payload and also brought back materials and experiments from ISS by storing it in middeck lockers. An iPhone was used by the astronauts to log experiment and was left on the ISS for future use. Also two Nexus S smart phones were also installed inside Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERE) to allow the crew to pilot them aboard ISS.
> This mission marked some of the significant milestones in the space history as 166th NASA manned space flight, 135th shuttle mission, 33rd flight of shuttle Atlantis, 3rd shuttle flight in 2011, 37th shuttle mission to the ISS, 22nd post-Columbia disaster shuttle mission, 100th post-Challenger disaster shuttle mission, 100th day launch, 133rd landing overall, 78th landing at KSC, 26th night landing and 20th night landing at KSC. After successful completion of this mission Atlantis was retired and kept as exhibit in the Kennedy Space Center Visitor Complex.