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The results from the Phoenix Mars Lander’s first set of chemical
analysis did not turn out quite as expected, as the scientists did not manage
to find any traces of water.
The researchers are still very optimistic about the upcoming
soil investigations and firmly believe that the needed compounds are just a few
inches below the planet’s dirt.
The tests finished yesterday involved several procedures on
the soil sample released into one of the Phoenix’s eight ovens. The Thermal and
Evolved-Gas Analyzer (TEGA) prepared the soil for its first test at a
temperature of 95 degrees and the second test demanded a temperature of 350
degrees. The second procedure proved that there was no chance for finding any
sort of ice fragments in the sample, as it would have surely melted at the
extremely high temperature.
One of the compounds found was carbon dioxide, which did not
come as a surprise, taking into consideration the fact that the Martian atmosphere
is primarily made of CO2.
The $420 million mission’s main objective is to determine
whether the Martian environment could sustain the emerge of primitive life and
even though the Lander’s devices are not able to identify living organisms, at
this point the scientists are only looking for traces of water and other
compounds that could support their thought.
The TEGA is set to heat its chambers at a maximum of 1,800
degrees and during the upcoming tests, if there will be any sort of
ice-fragment stuck to the minerals or any other studied particles, it will
surely be detected.
"We think it's ice. But again, until we can see it
disappear ... we're not guaranteed yet," mission scientist Ray Arvidson from
the Washington University in St. Louis said yesterday, according to the
Associated Press.
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