Spock may live long and prosper, but he's had it with Star Trek conventions. Leonard Nimoy is ditching the Vulcan mind meld with devoted fans at the Trekkie fests now that he's 80 (in human years). The cosmic get-together over the weekend in suburban Chicago celebrating the 45th anniversary of the popular TV science fiction show is his last. Nimoy gave an impassioned farewell to aliens everywhere, who responded with a rousing send off. Nimoy has been committed to the series' fans and conventions for years, while Captain Kirk (aka William Shatner) has ridiculed them, notes Entertainmentgather.com. But we all knew Kirk wasn't nearly as evolved. (More Spock stories.)