A group of experts provided their own estimates as to when actual proof of alien life will be discovered. According to the scientists, it is possible that traces of alien life will be found on Mars or ...
An unearthed NASA photograph taken by the Curiosity rover on Mars has triggered wild speculation over potential alien tracks.
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Mysterious 'flying' object in NASA Mars photo sparks theory of aliens on the Red Planet
An image of Mars taken by NASA's rover has sparked theories that aliens may be hiding on the Red Planet.
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