This popular acne medication carries a disturbing legacy

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Asteroid Ryugu dust delivered to Earth; NASA astrobiologists prepare to probe it

A zoomed-out image of a speck of Murchison meteorite (about 4 micrograms) mounted onto gold foil, inside a glass ampoule. This was taken as NASA Goddard astrochemists were about to execute their hot water extraction procedure to liberate any organic compounds that can dissolve in water. Credit: NASA’s Goddard Space Flight Center/Eric T. Parker On […]

Microwave pulses caused bizarre ‘Havana syndrome,’ report suggests

A string of mysterious neurological illnesses reported by U.S. diplomats in Cuba was likely caused by directed microwave energy, according to a new report from the National Academies of Sciences. In late 2016, people who worked at the U.S. embassy in Havana, Cuba, started to develop unexplained symptoms including hearing loud noise accompanied by pain […]

Giant pandas may roll in horse poop to feel warm

It was a strange sight: In the winter of 2007, scientists in China spotted a wild giant panda romping about in horse manure, diligently smearing itself with excrement until its fur became a poo-muddled mess. It wasn’t the last time the researchers would spot this strange behavior. But figuring out why pandas do this would […]

Podcast: From Athlete to Astronaut

Note: Scroll down for a complete transcript of this episode of Third Pod from the Sun. Leland Melvin’s scientific career began during his childhood in Lynchburg, Va., when he created a fantastic explosion in his living room with an at-home chemistry set. Little did Melvin or his family know that he would become […]

Sharing doesn’t make you a sucker. This scientist has the numbers to prove it.

Athena Aktipis calls Arizona her home base, but her teams projects spans multiple communities, countries, and continents. (Caitlin O’Hara/) When British-American anthropologist Colin Turnbull published The Mountain People in 1972, he dubbed his subjects—a Ugandan group called the Ik—”the loveless people.” After two years of observations, he decided that they reflected humanity’s basest instincts: adultery, […]

Key building block for organic molecules discovered in meteorites

IMAGE: A fragment of the Murchison meteorite, one of the three carbon-rich meteorites that was sampled in this study (Photo: Daniel P. Glavin). view more  Credit: Daniel P. Glavin Scientists from Japan and the USA have confirmed the presence in meteorites of a key organic molecule which may have been used to build other organic molecules, […]

Scientists solve mystery of mass coho salmon deaths. The killer? A chemical from car tires

Coho salmon, Tillamook State Forest, Oregon. Credit: Oregon Department of Forestry When officials in Seattle spent millions of dollars restoring the creeks along Puget Sound—tending to the vegetation, making the stream beds less muddy, building better homes for fish—they were thrilled to see coho salmon reappear. But when it rained, more than half, sometimes all, […]