I've always been interested in space exploration and particularly Mars. Reason for so is because of the water on it and the canals and even a statue type structure that would be the same longitude and latitude as the one structure on earth that almost looks the same. Maybe we could prove that either mars had life on it, or at least other civilizations had once visited it. If we could prove this to be true how would this change the thoughts of any possibility of life elsewhere in the universe. All the radio waves being sent into space you'd think someone has received the signals. The issue would be their way of demodulating a carrier and could they understand what to do with the carrier once they find our frequencies.
Earth still has some life on it but us humans will take care of that.