Skull damage suggests Neandertals led no more violent lives than humans

Neandertals are shaking off their reputation as head bangers. Our close evolutionary cousins experienced plenty of head injuries, but no more so than late Stone Age humans did, a study suggests. Rates of fractures and other bone damage in a large sample of Neandertal and ancient Homo sapiens skulls roughly match rates previously reported for ... Read more

50 years ago, researchers discovered a leak in Earth’s oceans

Oceans may be shrinking — Science News, March 10, 1973 The oceans of the world may be gradually shrinking, leaking slowly away into the Earth’s mantle…. Although the oceans are constantly being slowly augmented by water carried up from Earth’s interior by volcanic activity … some process such as sea-floor spreading seems to be letting ... Read more

This huge plant eater thrived in the age of dinosaurs — but wasn’t one of them

A new species of hulking ancient herbivore would have overshadowed its relatives. Fossils found in Poland belong to a new species that roamed during the Late Triassic, a period some 237 million to 201 million years ago, researchers report November 22 in Science. But unlike most of the enormous animals who lived during that time ... Read more

A new way to turn saltwater fresh can kill germs and avoid gunk buildup

A new design for sun-powered desalination technology may lead to longer-lasting devices that produce cleaner water. The trick boils down to preventing a device’s components from touching the saltwater. Instead, a lid of light-absorbing material rests above a partially filled basin of water, absorbing sunlight and radiating that energy to the liquid below. That evaporates ... Read more

Here’s what was surprising about Kilauea’s 3-month-long eruption

WASHINGTON — After a stunningly explosive summer, Kilauea, the world’s longest continuously erupting volcano, finally seems to have taken a break. But the scientists studying it haven’t. Reams of new data collected during an unprecedented opportunity to monitor an ongoing, accessible eruption are changing what’s known about how some volcanoes behave. “It was hugely significant,” ... Read more

DNA tests of Lassa virus mid-outbreak helped Nigeria target its response

When an outbreak of a viral hemorrhagic fever hit Nigeria in 2018, scientists were ready: They were already in the country testing new disease-tracking technology, and within weeks managed to steer health workers toward the most appropriate response. Lassa fever, which is transmitted from rodents to humans, pops up every year in West Africa. But ... Read more

High-speed video reveals physics tricks for shooting a rubber band

Scientists are taking aim at the physics of rubber band bombardments. Using high-speed video, researchers have analyzed what happens to a rubber band when it’s launched from a thumb. The results offer some tips for how to make a clean shot, Boston University mechanical engineers Alexandros Oratis and James Bird report in a paper in ... Read more

The oldest known astrolabe was used on one of Vasco da Gama’s ships

While searching for shipwreck remains near Oman in the Arabian Sea in 2014, divers discovered an unusual metal disk that has since proven to be the world’s oldest known mariner’s astrolabe, British researchers report. The navigational device came from the wreckage of a ship in the Portuguese armada that had been part of explorer Vasco ... Read more

Women have a new weapon against postpartum depression, but it’s costly

Approval of the first and only treatment in the United States specifically targeting postpartum depression offers hope for millions of women each year who suffer from the debilitating mental health disorder after giving birth. The new drug brexanolone — marketed under the name Zulresso and approved on March 19 by the U.S. Food and Drug ... Read more

The delight of discovering an asteroid that spits

These are wondrous times for space exploration. Just when you think exploring the cosmos couldn’t possibly get more fun, another discovery delivers a new “oh wow” moment. Consider the asteroid Bennu. It’s an unprepossessing space rock that drew scientists’ curiosity because it is among the most pristine objects in our solar system, and it might ... Read more