“Of course [I believe in aliens]. Are you so arrogant as to believe we are alone in this universe?” Tom Cruise

Have you answered all the big question like are we alone in the Universe? I haven't either but I have been helping to find the answer to the question by donating my computers processing power when it is unused. There has been a program called SETI@home for years. Essentially you install a small program that downloads small bits of unused research data and uses your computer when it sits idle to complete the research. The SETI program has been looking for radio transmissions from space and they try to sort through all the noise and junk that roams through the galaxy. However if aliens are not your thing to help out with there is a list ranging from global warming research to curing diseases. All the research is done using the BOINC network. If you would like to help the planet in one way or another give it a try.