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E.g., 04/19/2019
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  • News

    More than a million tiny earthquakes revealed in Southern California

    In between the “big ones,” millions of tiny, undetected earthquakes rumble through the ground. Now, a new study uncovers a decade’s worth of such “hidden” quakes in Southern California, increasing the number of quakes logged in the region tenfold. Such troves of quake data could shake up what’s known about how temblors are born belowground, and how they can interact and trigger one another,...

    04/18/2019 - 14:00 Earth
  • News

    A genetic scorecard could predict your risk of being obese

    There’s a new way to predict whether a baby will grow into an obese adult.

    Combining the effect of more than 2.1 million genetic variants, researchers have created a genetic predisposition score that they say predicts severe obesity. People with scores in the highest 10 percent weighed, on average, 13 kilograms (about 29 pounds) more than those with the lowest 10 percent of scores, the...

    04/18/2019 - 11:00 Genetics
  • News

    Immigrants pave the way for the gentrification of black neighborhoods

    Many think of gentrification today as wealthy, white millennials moving into low-income, minority neighborhoods and driving up housing costs. Yet a new study suggests that another group may play a key role in the process: immigrants.

    Gentrification, in which affluent outsiders settle and renovate rundown neighborhoods, generally decreases in white neighborhoods when immigrants from Asia...

    04/18/2019 - 08:00 Science & Society
  • Science Visualized

    Warm, dry winds may be straining Antarctica’s Larsen C ice shelf

    Turquoise pools of snowmelt on the Antarctic Peninsula, including on the Larsen C ice shelf, have recently been forming months after the continent’s peak summer melt. Bursts of warm, dry wind cascading over mountains that run along the peninsula are largely to blame, researchers report April 11 in Geophysical Research Letters. In this March 2016 satellite image, meltwater on part of Larsen C...

    04/18/2019 - 06:00 Earth, Climate, Oceans
  • News

    Dead pig brains bathed in artificial fluid showed signs of cellular life

    Scientists have restored cellular activity to pig brains hours after the animals’ death — an unprecedented feat. This revival, achieved with a sophisticated system of artificial fluid, took place four hours after the pigs’ demise at a slaughterhouse.

    “This is a huge breakthrough,” says ethicist and legal scholar Nita Farahany of Duke University, who wasn’t involved in the research. “It...

    04/17/2019 - 13:15 Neuroscience, Health
  • News

    The first type of molecule to form in the universe has been seen in space

    Helium hydride ions, thought to be the first type of molecule to form in the universe, have finally been spotted in space.

    These charged molecules, each made of a neutral helium atom and a positively charged hydrogen atom, first emerged within about 100,000 years after the Big Bang. Back then, the universe was composed almost entirely of hydrogen and helium, and helium hydride was the...

    04/17/2019 - 13:00 Chemistry, Astronomy
  • It's Alive

    Parenting chores cut into how much these bird dads fool around

    The extreme dads of the bird world do all the work raising chicks while females fight intruders. The result: Male black coucals don’t sleep around as much when busy parenting.

    On occasion, a male black coucal (Centropus grillii) slips over to another male’s nest to sire a chick. The demands of incubating eggs, however, reduce a male’s excursions about 17 percent, on average, compared...

    04/17/2019 - 08:00 Animals, Evolution
  • News

    Statisticians want to abandon science’s standard measure of ‘significance’

    In science, the success of an experiment is often determined by a measure called “statistical significance.” A result is considered to be “significant” if the difference observed in the experiment between groups (of people, plants, animals and so on) would be very unlikely if no difference actually exists. The common cutoff for “very unlikely” is that you’d see a difference as big or bigger...

    04/17/2019 - 06:00 Science & Society
  • News

    A 2014 meteor may have come from another solar system

    Earth may already have been visited by an object from outside our solar system — a meteor that burned up in the planet’s atmosphere in 2014, astronomers claim. If confirmed, it would be the first known interstellar object to have entered the atmosphere.

    The first interstellar visitor known to have come close to Earth was the roughly 400-meter-wide asteroid named ‘Oumuamua. It swooped...

    04/16/2019 - 14:29 Planetary Science
  • News in Brief

    ‘Added sugar’ food labels may prevent heart disease and diabetes

    Nutrition label changes aimed at curbing America’s sweet tooth could have a sizable payoff for public health.

    A new study projects that the updated labels, which detail the amount of sugar added to a food or drink, could help the average U.S. adult cut sugar consumption by around half a teaspoon a day. If that happens, the labeling change could prevent around 350,000 cases of...

    04/16/2019 - 14:00 Health