There once was an age of exploration, when humans set out to see for themselves what was over the next ridge. Those days seem to be gone -- when was the last time you saw a Lewis and/or Clark feted in the media? Oh, the spirit of adventure and curiosity are still present in humanity, we've just broadened our horizons by a magnitude. These days, we launch robots into the vastness of space and have them report back to us from their destination, whether... More >>>