Had spare parts laying around collecting dust... why not let them collect Radio Signals.
I think it's pretty vain to think that we are the only "ones" in this Universe, why not help to find out.
Keep up the good work.
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.
