Enzymes aid rice plants’ arsenic defenses

BOSTON — Rooted in place, plants can’t run away from arsenic-tainted soil — but they’re far from helpless. Scientists have identified enzymes that help rice plant roots tame arsenic, converting it into a form that can be pushed back into the soil. That leaves less of the toxic element to spread into the plants’ grains, […]

Certain birth defects are on the rise since Zika arrived in the U.S.

Certain birth defects were 20 times more prevalent in babies born to Zika virus–infected mothers in the U.S. in 2016 than they were before the virus cropped up in the United States, a CDC study suggests. The finding strengthens the evidence that a mother’s Zika infection during pregnancy raises her baby’s risk of microcephaly and […]

In new Cassini portraits, Saturn’s moon Pan looks like pasta

Saturn serves up the closest thing to space pasta, the latest round of images from NASA’s Cassini probe, released March 9, show. On March 7, the spacecraft snapped a series of portraits of Pan, Saturn’s small moon that orbits within a 325-kilometer gap in one of the planet’s rings. Taken at a distance of 24,572 […]

‘Specimens’ goes behind the scenes of Chicago’s Field Museum

Most visitors to a large natural history museum don’t know it, but they are only scratching the surface of the museum’s holdings, even if they check out every exhibition. Most of the scientific treasures are tucked away in collection rooms filled with millions of specimens, which scientists use in their research. The Field Museum in […]

Gene knockouts in people provide drug safety, effectiveness clues

Some Pakistani people are real knockouts, a new DNA study finds. Knockouts in this sense doesn’t refer to boxing or a stunning appearance, but to natural mutations that inactivate, or “knock out” certain genes. The study suggests that human knockouts could prove valuable evidence for understanding how genes work and for developing drugs. Among 10,503 […]

The Arctic is a final garbage dump for ocean plastic

The Arctic Ocean is a final resting place for plastic debris dumped into the North Atlantic Ocean, new research suggests. A 2013 circumpolar expedition discovered hundreds of tons of plastic debris, from fishing lines to plastic films, ecologist Andrés Cózar of the University of Cádiz in Spain and colleagues report April 19 in Science Advances. […]

We went to the March for Science in D.C. Here’s what happened

The March for Science, Washington, D.C. — On April 22, 2017 — Earth Day — thousands of scientists, science advocates and general enthusiasts rallied on the grounds of the Washington Monument in Washington, D.C., at the first-ever March for Science. The organizers estimate that over 600 sister marches also occurred around the world. The march […]

Ancient DNA bucks tale of how the horse was tamed

DNA from 2,000-year-old stallions is helping rewrite the story of horse domestication. Ancient domesticated horses had much more genetic diversity than their present-day descendants do, researchers report in the April 28 Science. In particular, these ancient horses had many more varieties of Y chromosomes and fewer harmful mutations than horses do now. Previous studies based […]

Deep heat may have spawned one of the world’s deadliest tsunamis

Chemical transformations in minerals deep beneath the seafloor could explain why Indonesia’s 2004 mega-earthquake was unexpectedly destructive, researchers report in the May 26 Science. The magnitude 9.2 quake and the tsunami that it triggered killed more than 250,000 people, flattened villages, and swept homes out to sea across Southeast Asia. It was one of the […]

For babies exposed to opioids in the womb, parents may be the best medicine

The first thing you’ll notice is the noise. Monitors beep steadily, relentlessly, ready to sound a car-alarm blare if a baby is in trouble. The air has an astringent odor — not clean exactly, but reminiscent of an operating room (there’s one next door). Ceiling lights shine fluorescent white. Half are off, but glare from […]