Rewriting the history books: Why the Vikings left Greenland

One of the great mysteries of late medieval history is why did the Norse, who had established successful settlements in southern Greenland in 985, abandon them in the early 15th century? The consensus view has long been that ...

Room-temperature superconductor study retracted by Nature

A study published in March claiming the discovery of a superconductor that works at room temperature—a scientific holy grail—has been retracted by the high-profile journal Nature at the request of most of its authors.

Climate report: 'Uncharted territory' imperils life on Earth

An international coalition of climate scientists says in a paper published in BioScience that the Earth's vital signs have worsened beyond anything humans have yet seen, to the point that life on the planet is imperiled.

Scientists skeptical of superconductor claims that went viral

A recent claim by South Korean researchers that they have created a material which works as a superconductor at room temperature—long a holy grail of physics—has been met with huge excitement on social media but skepticism ...

What 'alien' languages can teach us about real ones

You can learn a lot about an animal by how it communicates. Birds tweet melodies to attract mates and defend their territory. Dogs befriend each other with wagging tails and smelly pheromones. Even plants communicate by diffusing ...

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