On Thursday, scientists working on the Phoenix project revealed new information with
regard to the on-site ongoing procedures.
After having stirred up a Martian soil sample, the spacecraft’s
robotic laboratory managed to identify certain chemicals that are currently
being used by plants and microbes on Earth.
The Phoenix Lander is now continuing the work of Opportunity and Spirit, NASA’s Mars rovers that have
spent about four years on the Red Planet’s surface. Judging by data gathered by
the two rovers, it was announced that the Red Planet was too salty to sustain
life. The early planet’s high concentration of minerals in water appears to have
made it inhospitable to even the most powerful microbes. Therefore, the new
information scientists are now working with can be seen as quite a
breakthrough.
The soil was found to be highly alkaline – which is in fact
a feature that supports certain types of primitive organisms in Antarctica. William Boynton of the University
of Arizona in Tucson,
currently in charge with the Phoenix
lab, considers the results to be "spectacular."
The operation was carried out as follows: the soil sample
was mixed with water brought from Earth in the solid state and the mixture was
then heated at temperatures ranging from 400 to 1,800 degrees. During the
heating process carbon dioxide was driven off and Martian water vapor traces
were revealed.
Samuel Kounaves, a Tufts University
chemist, reported the discovery of nutrient minerals in the soil, such as soluble
magnesium, sodium, potassium as well as several chloride compounds.
As the mission has encountered a few setbacks along the way
so far, everyone is hoping for things to run smoothly from now on and for good
news, such as those received this week, to keep on coming.
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