Carl Sagan passed away in 1996. If he were alive then yesterday would have been his 75th birthday.
I don't know for certain why I like Carl Sagan so much. My science teacher stated that "Carl Sagan made no serious contributions to science, other than a TV show which originally aired in 1980." So what? It was a really cool television show. His books are entertaining reads too.
I stumbled across this website today
Symphony of Science. Which had some really beautiful trippy remixes of Bill Nye, old Carl and Richard Feynman.
Anyway, happy belated birthday to you Carl. I never got to meet you, but I miss you often.