In 1976, NASA’s Viking landers conducted soil tests on Mars to search for signs of life. The Labeled Release experiment observed the evolution of radioactive gas following nutrient addition, which mimicked metabolic activity but was hindered by heat treatment. However, the findings were complicated by the presence of reactive chemicals in the Martian soil that could explain the results without invoking life.
Read more at the source
Disclaimer: The content of this post is sourced from external sites and is for informational purposes only. All rights and credits belong to the original authors and publishers.