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  • News

    How these tiny insect larvae leap without legs

    No legs? Not a problem. Some pudgy insect larvae can still jump up to 36 times their body length. Now high-speed video reveals how.

    First, a legless, bright orange Asphondylia gall midge larva fastens its body into a fat, lopsided O by meshing together front and rear patches of microscopic fuzz. The rear part of the larva swells, and starts to straighten like a long, overinflating...

    08/08/2019 - 18:20 Biophysics, Animals, Evolution
  • News

    The worst wildfires can send smoke high enough to affect the ozone layer

    For the first time, scientists have seen exactly how towering clouds that rise from intense wildfires launch smoke high into the atmosphere, where it can linger for months and mess with the protective ozone layer.

    Cooler air closer to Earth’s surface normally keeps smoke from rising too high. But as dozens of fires raged in western Canada and the U.S. Pacific Northwest in the summer of...

    08/08/2019 - 14:00 Climate, Earth
  • 50 years ago, Fermilab turned to bubbles

    Bubbles for Batavia —

    Use by visitors is expected to be especially large at the National Accelerator Laboratory now under construction at Batavia, Ill.... NAL staff and consultants agree that the laboratory will need a large bubble chamber, and it now plans to build one in collaboration with Brookhaven National Laboratory. — Science News. August 16, 1969 

    Update

    NAL was renamed...

    08/08/2019 - 08:00 Physics
  • News in Brief

    One in 4 people lives in a place at high risk of running out of water

    The world is facing a water scarcity crisis, with 17 countries including India, Israel and Eritrea using more than 80 percent of their available water supplies each year, a new analysis finds. Those countries are home to a quarter of the world’s 7.7 billion people. Further population rise or dwindling water supplies could cause critical water shortages, the researchers warn.

    “As soon as...

    08/08/2019 - 06:00 Earth
  • News

    Mercury levels in fish are rising despite reduced emissions

    Climate change and overfishing may be hampering efforts to reduce toxic mercury accumulations in the fish and shellfish that end up on our plates. Mercury emissions are decreasing around the globe. But new research suggests that warmer ocean waters and fishing’s effects on ecosystems can alter how much mercury builds up in seafood.

    Fishing practices increased methylmercury levels in the...

    08/07/2019 - 15:37 Climate
  • News in Brief

    Why people with celiac disease suffer so soon after eating gluten

    Researchers finally know why people with celiac disease get nauseous within hours of eating gluten.

    Some immune cells dump stomach-churning levels of immune chemicals called cytokines into the blood soon after the cells encounter gluten, triggering symptoms, scientists report August 7 in Science Advances.

    “When patients ate gluten, symptoms and cytokines went up at the same time,”...

    08/07/2019 - 14:00 Immune Science, Cells, Biomedicine
  • News

    Giant, active galaxies from the early universe may have finally been found

    Astronomers may finally have laid eyes on a population of enormous but elusive galaxies in the early universe.

    These hefty, star-forming galaxies are shrouded in dust, which hid them from previous searches that used starlight. Now observations of radiation emitted by that interstellar dust have revealed dozens of massive, active galaxies from when the universe was younger than 2 billion...

    08/07/2019 - 13:00 Astronomy
  • August 17, 2019

    08/07/2019 - 12:14
  • Feature

    How pieces of live human brain are helping scientists map nerve cells

    The golf ball–sized chunk of brain is not cooperating. It’s thicker than usual, and bloodier. One side has a swath of tissue that looks, to my untrained eye, like gristle.

    Nick Dee, the neuroscientist charged with quickly cutting the chunk into neat pieces, confers with his colleagues. “We can trim off that ugliness on the side,” he says. The “ugliness” is the brain’s connective tissue...

    08/07/2019 - 06:00 Health, Biomedicine
  • News

    Racist words and acts, like the El Paso shooting, harm children’s health

    Just days before 22 people were killed in El Paso, Texas, allegedly by an anti-immigrant gunman, the American Academy of Pediatrics warned that racism was harming children’s overall health.

    Among the people fleeing the shooting at a Walmart on August 3 were young families with children shopping for back-to-school supplies. “Two young parents who sacrificed themselves to shield their 2-...

    08/06/2019 - 15:37 Health