Earth
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EnvironmentThis chemist uses online videos to teach about the perils of microplastics
Imari Walker says her journey as a scientist and science communicator lets her talk about and advocate for her passion.
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EnvironmentBacterial ‘living wires’ could help protect the seas and climate
Long, thin bacteria that conduct electricity may be able to help clean up oil spills and reduce emissions of methane, a powerful greenhouse gas.
By Nikk Ogasa -
AgricultureLet’s learn about eating bugs
Eating more insects, rather than pork, beef or other kinds of meat, may be better for the planet.
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EarthAnalyze This: Wildfires are pumping more pollution into U.S. skies
Researchers wanted to study the health effects of wildfire smoke. But they realized they didn’t know where it was and how much exposure people had.
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Environment‘Forever’ chemicals show up in students’ school uniforms
Researchers found PFAS “forever chemicals” in kids’ school uniforms and other clothing. Studies have linked these compounds to health risks.
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Materials ScienceLet’s learn about microplastics
Microplastics have turned up everywhere from the highest mountains to the bottom of the ocean — and even inside animals and people.
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ClimateWarming temps could turn some blue lakes green or brown
Slightly warmer summers could cause thousands of blue lakes to become a murky green or brown, according to a tally of color in 85,000 lakes worldwide.
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EarthScientists Say: Pole
A pole is either of two opposite ends of a molecule, magnet, battery, planet or other object.
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EarthNot one, but two asteroids might have ended the age of dinosaurs
A craterlike structure found off the coast of West Africa might have been formed by an asteroid that struck around the time dinosaurs went extinct.
By Nikk Ogasa -
EarthOne 2022 tsunami may have been as tall as the Statue of Liberty
A massive volcanic eruption in the South Pacific, earlier this year, appears to have triggered one tsunami that was initially 90 meters (nearly 300 feet) tall.
By Sid Perkins -
SpaceAmateur astronomers reveal clues to a mysterious double aurora
Stunning images from citizen scientists show an unusual pattern in ‘Northern Lights.’ They offer clues that may help astronomers better understand a curious red glow.
By Asa Stahl