How will we know when we've built a sentient computer? By making it solve a simple puzzle
One species of soil microbe makes unusually wise communal decisions
As Nobel Prize winners gather this month to share their wisdom with younger researchers, Scientific American recalls some of the articles that Nobel laureates have published in our pages
The surprising accident at Fukushima puts the spotlight on a new generation of U.S. nuclear reactors. Are they safe enough?
In the race to the South Pole, explorer Robert F. Scott refused to sacrifice his ambitious science agenda
A contagious tumor threatens to wipe out the famous Tasmanian devil. Could similarly "catching" cancers arise in humans, too?
Quantum mechanics is not just about teeny particles. It applies to things of all sizes: birds, plants, maybe even people
A handful of scientists aim to satisfy the world's growing appetite for steak without wrecking the planet. The first step: grab a petri dish
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