(CNN/NASA) – Think flying saucers are something you only see in a movie or book? Think again.
NASA plans to test a saucer-shaped craft Wednesday over Hawaii.
A balloon will lift the craft 20 miles into the sky.
The craft will then be freed to fire its rockets and test its supersonic parachute before it splashes into the sea.
NASA is looking at the craft and chute as the key to a future human mission to Mars.
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