I really think extra terestrial life exist if not what a loss of space!!! I dont think human will discovered it but they will discovered us and i dont really think that they will want to destroy us but i do hope they will want to take some beer with us!
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.