NASA Mars Rover Draws Giant Penis On The Surface Of Red Planet

Anybody who has kept up with the Curiosity Rover's antics on Twitter will know NASA has a cheeky sense of humour, but we never expected this.  Looks like an employee has used the Rover to draw a giant penis on the surface of Mars.  The photo in question shows one of Spirit’s or Opportunity’s tyre tracks leaving a very appendage-looking impression in the Martian dust.