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The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms to the central and eastern U.S.

Buried "megaripples" — some the size of five-story buildings — are helping scientists piece together the devastation following the impact that wiped out the nonavian dinosaurs.

New research suggests that a binary pair of Kuiper Belt objects, known as the Altjira system, is actually made up of three separate bodies orbiting one another in a complex triad. This rare orbital configuration is often referred to as the "three-body problem."

A fossil that was first discovered over 50 years ago has finally been identified as a dinosaur that lived around 166 million years ago, during the Jurassic Period.

The common diabetes drug metformin works partly by excreting sugar from the bloodstream into the intestines, where gut bacteria then convert it into chemicals that improve the insulin response.

Experts explain the difference between what it means to experience cancer remission versus being cured of the disease.

An AI model can scan your brain with non-invasive equipment and convert your thoughts into typed sentences — with no implants required.

Varda Space Industries' W-2 space capsule reentered Earth's atmosphere and touched down in the Australian outback last month, becoming the first commercial spacecraft to land Down Under.

A photograph of a water droplet.

More than 800 years ago, a Russian boy named Onfim sketched himself on his schoolwork.

New study suggests megalodons may have grown 15 feet longer than some previous estimates, had enormous babies, and didn't look like supersized great white sharks.