The Curiosity rover from NASA has, once again, redefined the way we perceive Mars after finding organic compounds that have not been seen before on the planet. The presence of these compounds does not indicate the existence of any forms of life that were there on the planet or may still be there now,

Curiosity rover does an experiment never done beyond Earth

The nuclear-powered robot uncovered a diverse mix of organic molecules - including chemicals widely considered building blocks for the origin of life on Earth.