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Finding water on Mars isn't itself a new discovery; the planet's polar regions are full of ice. But the new research paves the way for future study into Mars' habitability and the search for life ...
NASA's InSight lander measured Marsquakes, and now its data is hinting there's a reservoir of liquid water under the planet's surface. Another point for life on Mars: Signs of liquid water ...
“Our data suggests the presence of water in the crust of Mars at a comparable time to the earliest evidence for water on Earth’s surface, around 4.4 billion years ago,” said lead study ...
The thermodynamic availability of water (water activity) strictly limits microbial propagation on Earth, particularly in hypersaline environments, and there are indications that the brine ionic strength is a barrier to the habitability of Mars.
At the area it was measuring, it is estimated that there is water 7 to 13 miles beneath the surface of Mars. It is estimated that there is enough groundwater on Mars that could theoretically cover all of Mars surface in water between 0.62 and 1.24 miles deep, if it was all surface water. [420] [421]
This means that Mars has lost a volume of water 6.5 times what is stored in today's polar caps. The water for a time would have formed an ocean in the low-lying Mare Boreum. The amount of water could have covered the planet about 140 meters, but was probably in an ocean that in places would be almost 1 mile deep. [1] [2]
The water, located about 7.2 to 12.4 miles (11.5 to 20 km) below the Martian surface, potentially offers conditions favorable to sustain microbial life, either in the past or now, the researchers ...
There may be much more water further below the surface; the instruments aboard the Mars Odyssey are only able to study the top meter or so of soil. If all holes in the soil were filled by water, this would correspond to a global layer of water 0.5 to 1.5 km deep. [9] The Phoenix lander confirmed the initial findings of the Mars Odyssey. [10]
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