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Researchers are struggling to assess the dangers of nondegradable compounds used in clothes, foams and food wrappings.

Island sprang up near Tonga three years ago, giving researchers a glimpse of how flora and fauna colonise it

Of all the many ways the teeming ecosystem of microbes in a person’s gut and other tissues might affect health, its potential influences on the brain may be the most provocative. Now, a study of two large groups of Europeans has found several species of gut bacteria are missing in people with depression. The researchers…

The smiling salamanders can regrow most of their body parts, so researchers are building improved maps of their DNA.

The strange orbits of some objects in the farthest reaches of our solar system, hypothesised by some astronomers to be shaped by an unknown ninth planet, can instead be explained by the combined gravitational force of small objects orbiting the Sun beyond Neptune, say researchers.

“When I first saw it, I just said ‘What?!’ and didn’t speak for a while,” said one of the researchers who studied the fossils of a prehistoric marine reptile.

Using new data from NASA’s Cassini spacecraft, researchers believe they have solved a longstanding mystery of solar system science: the length of a day on Saturn. It’s 10 hours, 33 minutes and 38 seconds.

A new Canadian radio telescope, not yet fully operational, has already detected more than a dozen of the mysteriously brief blasts from deep space known as fast radio bursts (FRBs). One is only the second known to flash repeatedly, researchers reported here today at the annual meeting of the American Astronomical Society. The early results…

Deep-learning algorithm helps to diagnose conditions that aren’t readily apparent to doctors or researchers.