"I'd rather live in a World surrounded by mystery than a World so small my mind could comprehend it all". I think it's basic human nature to explore... and what better place to explore than space!
I like the idea of my computer being part of a network of people attempting to discover extraterrestrial life.
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.