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Touchdown! 

A Soyuz spacecraft is seen as it lands with astronaut Shane Kimbrough of NASA and Russian Flight Engineers Sergey Ryzhikov and Andrey Borisenko near the town of Zhezkazgan, Kazakhstan on Monday, April 10. Kimbrough, Ryzhikov, and Borisenko are returning after 173 days in space onboard the International Space Station. 

While living and working aboard the space station, the crew members contributed to hundreds of experiments in biology, biotechnology, physical science and Earth science aboard the world-class orbiting laboratory. For example, the Microgravity Expanded Stem Cells investigation had crew members observe cell growth and other characteristics in microgravity. 

Results from this investigation could lead to the treatment of diseases and injury in space, and provide a way to improve stem cell production for medical therapies on Earth.

Photo Credit: (NASA/Bill Ingalls)

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