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.

Waste Management Eyes an Expansion

The biggest name in waste is looking to build out its business, and it might have found a cheap way to get into medical waste and document shredding by buying Stericycle.