 Panorama image of crater on Mars (Source: NASA)
Scientists gleefully report that the Martian soil is able to support life
NASA scientists working the Phoenix Mars Lander mission
believe the soil in Mars could support life, but will continue to gather
evidence to be entirely sure.
Using the lander, scientists discovered the Martian soil is more alkaline than
they initially expected before landing on the Red Planet. The discovery
made them "flabbergasted," with findings made after a wet chemistry
experiment was made by Phoenix on Wednesday.
Phoenix's robotic arm collected a cubic centimeter of Martian soil just one
inch below the surface. Once inside of Phoenix, it was mixed with Earth
water and heated in an oven.
"We basically have found what appears to be the requirements, the nutrients,
to support life whether past present or future," said Sam Kounaves,
project lead chemist who works at the University of Arizona.
The soil is "very friendly" and "it is the type of soil you
would probably have in your back yard, you know, alkaline," Kounaves
said. "You might be able to grow asparagus in it really well ... It
is very exciting for us."
The preliminary results show the alkaline soil has a pH level of between eight
and nine. They reported magnesium, potassium, chloride and sodium were
also found, with each mineral also found in soil here on Earth. The soil
could grow asparagus beans or turnips, but is too acidic for strawberries or
blueberries.
Scientists now wonder what they'll be able to find even further nutrients once
they begin to dig deeper below the surface.
Phoenix landed on Mars on May 25 and is scheduled for a three-month study of
areas on the surface where scientists hope to find evidence of living
organisms. They recently found ice crumbs that would make it possible for
humans could easily use and make safe to drink, and the soil would be able to
support crops.
Even with the
recent findings of ice crumbs and soil ideal for plant life, the lander
still hasn't found evidence that anything has lived or is living on the
planet. Since virtually everywhere on Earth that has a reliable water
source can also support life, "could it also be true at Mars?"
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