Notable Newtonians: Celebrities from Newton
Chang-Diaz, originally from Costa Rica, moved to the United States in 1968 unable to speak English. By 1977, he had earned a doctorate in applied plasma physics from MIT.
He was NASA's first Latin American to go into space, and he's been there seven times, which ties the record.
He is researching ion plasma rockets that could theoretically get an astronaut to Mars in 39 days.
His daughter, Sonia, is a state senator.