AstraZeneca lowers efficacy claim for COVID-19 vaccine, a bit, after board's rebuke

Scientists find evidence that novel coronavirus invades the mouth's cells

There’s a cheaper, quicker and cleaner way to recycle more of your gadgets - New method enables rare earth metals to be more easily extracted from batteries, computers and electric cars.

Want a longer, healthier life? Resolve your arguments by day's end, OSU study says