Life on Mars? Rover may have evidence

Evidence of life on Mars may have been detected by Nasa’s Curiosity rover.

An instrument on the six-wheeled robot identified mysterious spikes of methane that cannot easily be explained by geology or organic material transported to the planet by comets or asteroids. Scientists acknowledge the source could be bacteria-like organisms.

If the existence of living, breathing microbes on Mars is confirmed, it will be one of the most monumental discoveries in history.