At the age of 17, he moved to Connecticut in the U.S. to live with his relatives and pursued his doctorate in plasma physics at the Massachusetts Institute of Technology. Through determination and perseverance he became an astronaut in 1980 and went on his first mission in 1986. For 25 years, Chang Diaz was an astronaut at NASA, flying on the space shuttle not just once, but seven times.
Now that his flying days are over, he is still pushing the boundaries. His next project is his most ambitious by far: building the spaceship that will take a man to Mars.