claim: Salt River Valley is on the Mississippi River.
evidence: The Materials Science Laboratory -LRB- MSL -RRB- of the European Space Agency is a payload on board the International Space Station for materials science experiments in low gravity .. European Space Agency. European Space Agency. payload. Payload ( air and space craft ). International Space Station. International Space Station. materials science. materials science. It is installed in NASA 's first Materials Science Research Rack which is placed in the Destiny laboratory on board the ISS .. Destiny. Destiny ( ISS module ). Its purpose is to process material samples in different ways  : directional solidification of metals and alloys , crystal growth of semi-conducting materials , thermo-physical properties and diffusion experiments of alloys and glass-forming materials , and investigations on polymers and ceramics at the liquid-solid phase transition .. MSL was built for ESA by EADS Astrium in Friedrichshafen , Germany .. EADS Astrium. Astrium. It is operated and monitored by the Microgravity User Support Center -LRB- MUSC -RRB- of the German Aerospace Center -LRB- DLR -RRB- in Cologne , Germany .. Microgravity User Support Center. Microgravity User Support Center. German Aerospace Center. German Aerospace Center