G. David Low became an astronaut at the age of 28 and circled the Earth more than 500 times during his 12-year career with NASA. The man was a genius, with degrees in physics, mechanical engineering and astronautics. He died of colon cancer recently at the age of 52.

You can learn more by reading G. David Low, 52, Astronaut and Aerospace Executive, Dies in the March 30^th edition of the New York Times.