Offline reinforcement learning has long promised a way to build capable artificial agents without allowing them to experiment freely in ...

Illegal marketplaces are moving far beyond the familiar image of a hidden website reachable only through specialized software. According to ...

The Nile River, the lifeline of northeastern Africa, is governed by a climate system far more complex than its steady ...

Rainfall across the Sahel is becoming more concentrated into fewer days, creating a climate signal that may be as important ...

Cervical cancer may be driven in part by a molecular switch that scientists have only recently begun to understand: the ...

Australian brown snakes undergo a dramatic transformation as they grow, and new research suggests that the change is written directly ...

A microscopic partnership between a freshwater alga and a soil-associated bacterium may help determine how nutritious algae become—and how effectively ...

Cancer therapy-induced thrombocytopenia, a potentially treatment-limiting fall in platelet numbers, is drawing renewed attention after a multicenter phase II trial ...

A new analysis of nearly two decades of U.S. health data is drawing attention to a possible connection between dietary ...

Vulvovaginal candidiasis, a common fungal infection affecting women of reproductive age, may be facing a new kind of biological countermeasure. ...