ET life does exist somewhere out there, but whether they are sentient or not is another matter. If we do discover a signal from some distant planet millions of light years away (or even hundreds) then will they still exist or will they have been destroy by war or a natural disaster.
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.
