Today when I was about to Google something, I found a new Google doodle with a red spherical structure drinking a glass of water. I found it enthralling. I scrolled the curser over it and found that this doodle is to commemorate the announcement of NASA concerning the evidence of water on the Red Planet, Mars and possibility of some form of life on it.
Water in its liquid form exists on the reddish terrains of Mars, NASA had said, on Monday making it promising for the existence of life. NASA scientists sprung to this inference by a sturdy testament of irregular flows of salty water on the planet once they identified dark stains on the Martian terrain that can reach hundreds of metres downhill in summer, before they dry up in the fall as surface temperatures drop.
Earlier in 2008 NASA confirmed the existence of frozen water on this planet. While the latest interpretations from an Instrument abroad NASA’s Mars Reconnaissance Orbiter support the long-time theory that briny flows down certain cliffs every dry season, according to the scientists.
Photographs from the Mars orbit show the steep walls of valleys and craters, cliffs, streaked with summer solstice flows in the most active spots combine to form tricky fan-like patterns.
Michael Meyer, the chief scientist in NASA’s Mars exploration programme said, “There is liquid water today on the surface of Mars. Because of this, we odd that it is at least likely to have a habitable situation today.” From the spots of water flow NASA and other aerospace agencies look forward the reassuring sites to find life in some form on Mars. Howbeit, they find these spots safe with expected supply of water for imminent human missions.
But intermittently, Mars probes have found clues that suggested the planet might still be wet. As already said, almost a decade ago, NASA’s Mars Global Surveyor captured pictures, where in it appeared to be water leaking from a ravine and oozing around the gibbers and boulders. The high-resolution camera, later in year 2011, fixed to NASA’s Mars Reconnaissance Orbiter took pictures that depicted little creeks flowing down cave walls from last days of spring to early autumn that were named as “recurring slope lineae” or RSL by the scientists.
At the present a new instrument was fixed on the Mars Reconnaissance Orbiter to analyse the chemistry of the shadowy RSL flows by the researchers. Lujendra Ojha, a PhD student of Georgia Institute of Technology in Atlanta, and his associates toiled out to look at infrared light reflected from the rocky walls when the dark lines had just happened to appear and also when they had completely grown at the end of summer using a spectrometer on the MRO.
In the journal Nature Geoscience, this team explains the discovery of infra-red signatures for hydrated salts when the dark flows were existing, but none before they had full-grown.
The hydrated salts being a mix of chlorates and percholorates — are a smoking gun for the existence of water at all four sites examined: the Palikir, Hale & Horowitz craters, and a huge canyon known as Coprates Chasma.
The flows only appear when the surface of Mars rises above -23C. The water can run in such icy situations as the salts bring down the freezing point of water, retaining it liquid far below 0C