New tool to accelerate drug discovery

Inside your body on the surface of cell membranes, a metaphorical communication and traffic network is underway as hormones—or chemical messengers—bind to cell membrane receptors to fine tune how the cell behaves. Once ...

Thousands affected as quake hits Guatemala

A 6.2-magnitude earthquake that struck western Guatemala early Wednesday caused damage affecting nearly 25,000 people, and caused three people to suffer fatal heart attacks, authorities said.

Hibernating for a trip to Mars, the way bears do

Hibernating astronauts could be the best way to save mission costs, reduce the size of spacecraft by a third and keep crew healthy on their way to Mars. An ESA-led investigation suggests that human hibernation goes beyond ...

Mutant stem cells defy rules of development

Imagine you're baking a cake, but you run out of salt. Even with the missing ingredient, the batter still looks like cake batter, so you stick it in the oven and cross your fingers, expecting to end up with something pretty ...

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