Curiosity Sees a Strong Carbon Signature in a Bed of Rocks – Universe Today
But there are different types of carbon, and carbon can become concentrated in the environment for other reasons. Three carbon isotopes occur naturally: C12 and C13, which are stable, and C14, a radionuclide. C12 has one fewer neutron than C13, which means that when it bonds with other atoms into molecules, it makes fewer connections […]