Blue spots on Mars look like water, but aren’t

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PERTH: Blue regions in the image taken by the European Space Agency’s Mars Express orbiter are learnt to be dark sediments. The agency’s website has explained that the regions appeared like water because of the way processing of the image was done.
Researchers have been claiming for long the existence of water on the Red Planet, but the fact is that the temperature on the planet is so low that nearly all the water there is frozen solid.
“At first glance, this image seems to show something amazing in this crater, and in one of its neighbors to the right”, said the ESA. However, the reality is that it’s an optical illusion attributable to the image processing.
The ESA’s Mars Express orbiter has been keeping a watch on the Red Planet since December 2003. The picture in question was captured in November 2014 by one of the orbiter’s high-tech cameras on the craft’s 1,3728th orbit around the planet.