In this article NASA says that there are signs of water on Mars. The question is "Is it possible for there to be life on Mars?" The hypothesis is If there is water on Mars, then it is possible for there to be life on Mars. Scientists say that there are definite signs of liquid water on present day Mars. If there is water, there is life. This study can help build on the possibility of contemporary life on Mars. I knew that scientists were talking about people living on Mars before. I never knew that there was water on Mars.
http://www.nytimes.com/2015/09/29/science/space/mars-life-liquid-water.html?_r=0
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