Proof of life on Mars? Conspiracy theories emerge over 'alien thigh bone'

By Ben Grubb
Updated August 30 2014 - 2:13pm, first published 1:14pm
bone
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Alien thigh bone? NASA says highly unlikely. Photo: NASA
Alien thigh bone? NASA says highly unlikely. Photo: NASA
Nasa's Curiosity rover exploring Mars in February, 2013. Photo: NASA
Nasa's Curiosity rover exploring Mars in February, 2013. Photo: NASA
A mysterious rock found in January. Photo: NASA
A mysterious rock found in January. Photo: NASA

Is this photo an alien or dinosaur thigh bone on Mars, as some conspiracy theorists have suggested? Highly unlikely, NASA scientists have concluded.

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