I've always been intrigued by SETI, which stands for "Search for Extraterrestrial Intelligence." According to the SETI Institute website, "The mission of the SETI Institute is to explore, understand and explain the origin, nature and prevalence of life in the universe." To that end, they employ over 100 scientists, educators and support staff.
And just how do they go about searching for intelligent life in other parts of the universe? By examining signals received from space. To examine the data, thousands of volunteers run a software program as a screen saver that processes the data as it comes in.
Now, here's my question: How will they know when they find intelligent life?
Any time I meet someone who is running the SETI program, I ask that question. So far, no one has been able to answer. The looks I get tell me they've never even thought about it before.
Here's how the SETI website answers the question: "SETI...seeks evidence of life in the universe by looking for some signature of its technology." Now, what in the world does that mean?!
It sounds to me like they're looking for intelligent design.