Check in on previous TED prize winners:
Jill Tarter and Frank Drake, in their search for extraterrestrial activity, are working on utilizing the sun as a the giant telescope needed to observe
planets that are hundreds of light years away. The two most pressing questions that Drake can answer right now: 1. can we hide our efforts from other intelligence out there? No. We already sent
signals to every star within the range of 50 light years, they are probably watching our TV right now.
2. Why haven't they visited yet? Because it is expensive for everyone.
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setiquest.org to become a citizen scientist and help find the aliens faster