Graphical Representation (IMAGE) Science China Press Caption This is a graphical representation of the question of how fine-tuned life on Earth is under variations of the average light quark mass and α_{EM}. Image courtesy of Dean Lee. Credit ©Science China Press Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.