Life exists thoughout the universe. There was life before the Earth was formed and there will be life after the Earth is long gone. Intelligent ones that communicate using radio waves, not including humans? Maybe...
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.