| http://www.w3.org/ns/prov#value | - The discovery adds to the evidence that ancient Mars was habitable for life.Nitrogen is essential for all known forms of life, since it is used in the building blocks of larger molecules like DNA and RNA, which encode the genetic instructions for life, and proteins, which are used to build structures like hair and nails, and to speed up or regulate chemical reactions.However, on Earth and Mars, at
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