We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...
Space.com on MSN
Making contact with ET? Aliens may already know we're here
Earth is dotted with humongous, human-made structures that, to an alien eye, may be tell-tale signs of intelligent goings-on.
This enigmatic orb has undergone extensive examination and DNA testing, enabling scientists to reveal its true origins ...
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