Rover Curiosity has found traces of organic molecules on Mars, say researchers. This is another finding confirming theories about the existence of life on Mars.
These are thiophenes like carbon and sulfur-containing molecules that are essential to life. They also occur on Earth. We can find them, e.g. in mushrooms, coal or oil. Researchers say their biological origin can be primitive life processes.
Researchers do not exclude that thiophenes may have appeared on Mars after a meteor impact. However, if they arose as a result of biological processes, they may be traces of organisms that inhabited Mars in the past. “Extraordinary discoveries require extraordinary evidence,” NASA experts say and are continuing research.