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For nearly a decade, researchers have gathered camera footage from outside the dens of female polar bears and their cubs on Svalbard, shedding light on the behaviors linked to denning.

A study of the inner ear bones of Neanderthals shows a significant loss of diversity in their shape around 110,000 years ago, suggesting a genetic bottleneck that contributed to Neanderthals' decline.

Tea leaves can remove heavy metals such as lead, cadmium and chromium from water. And steeping time has the biggest impact.

A curious connection between an ancient supernova and virus diversification in one of Earth's biggest lakes means that crazy cosmic events may have had more influence on our planet than we thought.

As measles outbreaks in the U.S. continue, here's what to know about how the disease spreads, what its symptoms are, and how to protect yourself and community from the illness.

Chinese scientists claim to have found a new way of injecting helium into rocket engines, which could be used to make missiles that are much harder to detect or intercept. The new technology was allegedly inspired by the faulty spacecraft that "stranded" NASA astronauts on the ISS last year.

Archaeologists have brought to light an enormous fresco depicting a secretive cult practice in Pompeii.

A stunning "parade of planets" will grace the night sky this week, with all seven of Earth's celestial neighbors joining the show. Here's how to spot it and why it happens.

A new study has revealed that "hug of death" megaraptorids and previously unknown carcharodontosaurs shared Australia's unique Antarctic dinosaur ecosystem during the Cretaceous.

A rare parasitic twin protruding from the chest of a 17-year-old boy has been removed by surgeons in Delhi, India.

In world-first observations, the James Webb Space Telescope is watching two distant alien planets "spilling their guts into space" as they rapidly disintegrate — and scientists are elated at what they've found.