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Image captured by Phoenix Mars lander  (Source: NASA)
There have been numerous traces of possible water on Mars, but astronomers are still looking for definitive proof

Researchers believe they have found evidence of liquid salt water on the Red Planet of Mars, with the discovery thanks to the NASA's Phoenix Mars lander.

Several images captured by Phoenix show what appear to be water droplets located on one of the rover's landing struts, which now makes researchers believe there could be liquid water somewhere under the surface of the planet.

"A large number of independent physical and thermodynamical evidence shows that saline water may actually be common on Mars," according to University of Michigan professor Nilton Renno.  "Liquid water is an essential ingredient for life.  This discovery has important implications to many areas of planetary exploration, including the habitability of Mars."

Renno worded his report very carefully, explaining that the discovery has "important implications," but not outright saying it's proof of water liquid.

Although the temperature in the northern plains of Mars didn't go above minus 15 degrees Fahrenheit while the Phoenix was there for a six-month period in 2008, researchers still believe there could be pockets of water under the surface.  The presence of high amounts of salt may have caused the freezing temperature of water on Mars down to minus 90 degrees, which is about 120 degrees colder than Earth's 32 degree freezing temperature for water.

There are numerous spots on Mars that could be salty enough that it's unlikely they'll be able to freeze without the temperature dropping to minus 100 degrees or further, scientists said.

The report is still highly controversial, despite 22 different scientists signing onto the report -- NASA never brought up the discovery, seeing how the evidence may not be enough.

Each discovery of possible signs of liquid water or ice helps researchers hone in on locations space probes and satellites can examine during future missions.

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the green drop
By alu on 3/19/2009 10:03:06 AM , Rating: 3
that's mountain dew

RE: the green drop
By acase on 3/19/2009 10:10:01 AM , Rating: 2
Looks more like the lander drank some gatorade and got hot.

RE: the green drop
By BladeVenom on 3/19/2009 10:50:42 AM , Rating: 2
It's space herpes.

RE: the green drop
By Motoman on 3/19/2009 11:01:47 AM , Rating: 2
Ice Pirates FTW!

RE: the green drop
By wingless on 3/19/2009 11:18:41 AM , Rating: 4
C'mon guys, get serious. That is obviously Brawndo - The Thirst Mutilator! Now we know why Mars died. They watered everything with Brawndo. Dummies LOL...

Actually this discovery is fascinating. Where there is water there is the potential for permanent human colonization. We also know how to use the stuff as a fuel source. My only problem with Mars is the lack of a magnetic field. The radiation sun burns are going to be killer...

RE: the green drop
By choadenstein on 3/19/2009 11:57:59 AM , Rating: 2
But Brawndo has what plants crave, its got electrolytes!

RE: the green drop
By Seemonkeyscanfly on 3/19/2009 5:06:04 PM , Rating: 2
Little green men, they must come from the green water. Yes, it's starting to make sense now.

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