Scientists working with NASA’s Curiosity rover have detected traces of organic carbon on Mars that hypothetically could have been produced by long lost extraterrestrial lifeforms.
The authors stress that they have not been able to determine where the organic carbon came from, but they are also unable to rule out a biological origin.
The work was published in the Proceedings of the National Academy of Sciences (PNAS) journal on June 27.
Mars has long been a target for studies into past life on other worlds. Today it is a cold, barren world with no significant atmosphere, but billions of years…