Signs of water on Mars discovered by NASA via rover Curiosity (Photo)

By on Sep 29, 2012 in Astronomy, Science Comments

Updated: October 10, 2012 2:50 p.m.

Read Shiny object on Mars spotted by NASA rover Curiosity (Photo)

NASA‘s Curiosity rover mission reportedly discovered possible signs of water on Mars while it was driving on the Red Planet. Scientists are now studying the clues, which were seen in the rocks between the Gale Crater and a mountain inside it.

According to press release by NASA on its official website on Thursday, September 27, 2012, scientists believe that the shapes and sizes of the stones spotted on Gale Crater and the base of Mount Sharp somehow indicate that there has been a flow of water on it before.

As noted in the report, the images of the rocks suggest evidence of early stream of water on the area and are unique. Two outcrops were discovered on Mars and were called “Hottah” and “Link,” which are now both being believed to be showing signs of water on Mars.

Hottah looks like someone jack-hammered up a slab of city sidewalk, but it’s really a tilted block of an ancient streambed,” John Grotzinger of the California Institute of Technology in Pasadena and scientist at Mars Science Laboratory Project, with the gravels seen come from sizes from a grain of sand to a golf ball.

On the other hand, the image of the Link rock outcrop was taken on September 2, and got its name from Link Lake a narrow lake in the Ottawa River drainage basin, Northeastern Ontario, Canada, where there is also formed rock. A lot of rocks in the size of gravels wore down into the surface of this area in Mars.

“The shapes tell you they were transported and the sizes tell you they couldn’t be transported by wind. They were transported by water flow,” Rebecca Williams of the Planetary Science Institute in Tucson, Arizona said, who is also a science co-investigator of NASA‘s Curiosity.

Apparently, this is not the first time that NASA announced that they found signs of water on Mars. Back in August 2011, Mars Reconnaissance Orbiter (MRO) revealed images of finger-like features during the planet’s warmer months, suggesting that they fade during winter but appear again during the next spring.

Related Post: Remains of ancient lake in Mars spotted by ESA Mars Express satellite (Photos)

signs of water on Mars
Rock outcrop ‘Hottah,’ believed to be showing signs of water on Mars
Image Credit: NASA/JPL-Caltech/MSSS

signs of water on Mars Curiosity
Rock outcrop ‘Link,’ believed to be showing signs of water on Mars
Image Credit: NASA/JPL-Caltech/MSSS

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