A protein that enables smell–and stops cell death

While smell plays a considerable role in the social interactions of humans — for instance, signaling fear or generating closeness — for ants, it is vitally important. Researchers have found that a key protein named Orco, essential for the function of…

Lake under Mars ice cap unlikely

Researchers have provided a simple and comprehensive — if less dramatic — explanation for bright radar reflections initially interpreted as liquid water beneath the ice cap on Mars’ south pole.