Leonard Nimoy, Spock on 'Star Trek,' dead at 83

Kirk on the ground-breaking "Star Trek," which debuted in the 1960s. "Certainly he was a brilliant actor. But he also believed in working collaboratively," George Takei, who portrayed Mr Sulu on the sci-fi show, said. "Leonard was also a very dear friend." "Rip Leonard Nimoy. So many of us at NASA were inspired by Star Trek. Boldly go..." the US space agency said on Twitter.