Like many applications developed for space, this one, spaceman Petit points out, could also be useful to people who want to track their diets here on Earth.

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Sure, he felt pretty awful when Andy demoted him from top toy in favor of Buzz Lightyear, that way-cool spaceman who liked to shout "To infinity, and beyond!"

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He became president of Dartmouth College in 2009, where he made a memorable appearance as a rapping spaceman, complete with white, studded leather jacket, at a college talent show.

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The spaceman was born in Saltburn-by-the-Sea and completed much of his education in England (Harrow and Cambridge University) before moving to the US, where he did a PhD at the Massachusetts Institute of Technology (MIT).

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