Thanks to Alex W. for this one:
This video explores the possibility of life other places in the universe. For years, leading scientists have collected data suggesting life off of earth is extremely likely. In such an enormous galaxy, the thought that life only exists on one planet around our relatively tiny star seems absurd. However, alien life has never been discovered. There are some great scientists and thinkers who believe that contact with other life forms is imminent, and we should take measures to achieve this contact as soon as possible. Others, such as Dr. Stephen Hawking, believe that contact with alien life is something to be wary of, as he compares possible contact to Europeans encountering Native Americans for the first time. This video discusses not only the possibility of other life, but the debate over whether we should be looking for it or not.
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