UNTIL recently it was generally admitted that an atom resulting from artificial disintegration should normally correspond to a stable isotope. M. and Mme. Joliot first found evidence that it is not ...

Light is perceived by plants through distinct families of photoreceptors and affects multiple developmental processes, including seedling photomorphogenesis, seed germination and the shade-avoidance ...

Our planet now faces a global extinction crisis never witnessed by humankind. Scientists predict that more than 1 million species are on track for extinction in the coming decades. But there’s still ...