While @NASAPersevere endures thousands of tests to prep for Mars, some stand out. It's put through trials of fire, ice, light & sound. It must withstand freezing temperatures, constant radiation, dust and tough terrain, not to mention the trip there. http://go.nasa.gov/2X6vKqJ pic.twitter.com/TxzR9PKxsY
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Is it made of tardigrades?
We'd have a tough time getting it to pass Planetary Protection if it was! 
Most of the rover body is aluminum, which is cleaned to exacting specifications. We don't want to go searching for signs of ancient life to find that we brought it with us from Earth.
Wydaje się, że ładowanie zajmuje dużo czasu.
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