NASA: WATER EVIDENCE ACTUALLY ROVER 'URINE'

The US Space Agency NASA has been forced to make an embarrassing correction to its earlier proclamation that groundwater once coursed through bedrock on Mars. NASA is now admitting that, in fact, the residue of water detected by the rover Opportunity was its own 'urine' -- liquid waste which the rover
is programmed to discard periodically as it roams the planet. Scientists at JPL are keeping mum, however, on rumors that announcement of a Mars 'log' has now also been held up pending determination of its source of origin.

Related: Signs That Water Flowed On Mars