As per scientist any flowing Martin water is salty and not pure.
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These dark, narrow, 100-meter-long streaks called recurring slope lineae flowing downhill on Mars are inferred to have been formed by contemporary flowing water. These seasonal formations were dubbed recurring slope linae (RSL), but it wasn’t initially obvious what they were made of.
Mars Reconnaissance Orbiter makes its measurements during the hottest part of the Martian day, so scientists believed any traces of water, or fingerprints from hydrated minerals, would have evaporated.
“When most people talk about water on Mars, they’re usually talking about ancient water or frozen water”, said Georgia Tech researcher Lujendra Ojha, the lead author of a report on these findings published September 28 in the journal Nature Geoscience.
In a news conference held today, NASA scientists announced that Mars wasn’t the barren wasteland that we once thought it to be. Experts claim that the streaks “appear and grow incrementally in the downslope direction during warm seasons”.
The source of the water is still a mystery to NASA scientists, who noted it could be melting ice, an underground aquifer, water vapor from the thin Martian atmosphere, or a few combination.
The new evidence emerged from data collected by an imaging spectrometer mounted on the spacecraft, which was launched in 2005 and has been orbiting Mars since 2006.
The “major science finding” it had to share was the strongest evidence yet that liquid water intermittently flows on Mars, just below the surface.
Perchlorate is highly absorbent and lowers the freezing point of water so that it remains liquid at colder temperatures.
And now that we know about tthe liquid water, maybe the next discovery will be proof of life. After study images of RSL scientists determined that dark images indicated liquid water under Mars’ surface.
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“If we discovered life on Mars, it would be hugely important because we’d have two planets on one solar system that both had life on them”, said Ojakangas.
