By Richard Galant, CNN
(CNN) - Years before Bill Nye became the Science Guy, he was a mechanical engineering student at Cornell University, where he took a course with astronomer Carl Sagan.
Sagan, who was instrumental in the planning of NASA missions to other planets and became widely known for his research, writing and public television series, was one of the founders of the Planetary Society. And his student dutifully signed up to become a member.
"I've been a member for over 30 years. And now I'm the head guy, it's quite odd," a surprised-sounding Nye told CNN in an interview in March at the TED2012 conference in Long Beach, California.