Life on Mars
Life
By: My space
Mars is interesting for study the origin of life.
Astronomers thought that, Mars was once upon time billions of years ago biologically active.
Mars surface contain elements like C,O,P,S,H,N and essential micronutrients with fixed nitrogen.
In the past Mars had dense Co2 atmosphere and colder than Earth.
Past
With time Mars lost his magnetic field which leads to decrease in surface habitability.
In present, till now any rover can not found any life evidence.
Present
Astronomers calculated that, due to cosmic radiation any terristrial bacteria can not be present up to depth 2 meters.
Biosignatures includes Methane, Formaldehyde and Mars meteorites that found on Earth.
Possible biosignatures on Mars
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