Meet the engineer behind NASA's robotic arm for Mars

Photos: Africa from the air, captured by NASA
Cairo, Egypt – The pyramids at Giza can be seen in the center of this image taken from the International Space Station in 2012, with the modern Cairo metropolitan area to the left and the Sahara desert on the right. Scroll through the gallery for more photos of the continent taken from space.
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Photos: Africa from the air, captured by NASA
River, Sierra Leone – The Sierra Leone river, captured in 2014 by the NASA Terra spacecraft.
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Photos: Africa from the air, captured by NASA
Mount Kilimanjaro, Tanzania – A crew member on the International Space Station captured this image of Mount Kilimanjaro, Tanzania, covered in snow and ice in 2007.
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Photos: Africa from the air, captured by NASA
Gres de Chinguetti Plateau, Mauritania – The Richat Structure, a geographical feature in the Sahara, is pictured in 1993 sitting in the Gres de Chinguetti Plateau in central Mauritania, northwest Africa.
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Photos: Africa from the air, captured by NASA
Carthage, Tunisia – The ancient city of Carthage in Tunisia is pictured here, as photographed by a crew member on the International Space Station in 2006.
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