2013년 3월 20일 수요일

Mars had the right stuff for life, scientists find

A set of images compares rocks seen by NASA's Opportunity rover and Curiosity rover at two different parts of Mars, in this NASA handout photo. On the left is '' Wopmay'' rock, in Endurance Crater, Meridiani Planum, as studied by the Opportunity rover. REUTERS/NASA/JPL-Caltech/Cornell/MSSS/Handout

Clays, sulfates and other minerals that are all key to life were found in the powdered samples of Mars. The water that once flowed through the area, known as Yellowknife Bay, was likely drinkable. Scientists speculated that Mars should have at one time at least had organic compounds delivered to its surface by organic-rich comets and asteroids. They also claimed that there might be different types of organisms such as chemoautotroph. Scientists studies comparing the environment of Earth and Mars.

We can see Mars in the sky easily, so it is quite surprising to me that research showed possibility of existence of  organisms with concrete evidences. There have been so many articles that tell us Mars or Moon might have organisms in old times or now. I also think there might be organisms like human somewhere in cosmos. But I don't believe it is Mars, because it has too high pressure and temperature to live. There isn't enough oxygen which is base element of living as well.

Irene Klotz. Mars had the right stuff for life, scientists find. Reuters. Wed Mar 13, 2013.

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