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  1. Physics

    Scientists Say: Voltage

    Voltage is a measure of how much electricity is available to power devices.

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  2. Animals

    World’s biggest colony of nesting fish lives beneath Antarctic ice

    Totally unexpected, it’s far, far larger than any other known community of nesting fish — fully one-third larger than the area of Washington, D.C.

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  3. Psychology

    We all imagine being friends with celebrities. Is that a bad thing?

    One-sided relationships with celebrities and fictional characters are normal. They also can boost self-esteem and empathy.

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  4. Environment

    Recycling a climate-warming gas could make ‘greener’ farmed fish

    Instead of warming the climate, methane gas can be collected to help farmers. Along the way, it may also save some fish.

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  5. Materials Science

    Let’s learn about glass

    Unlike the atoms in other solids, the atoms in glass don’t exist in an orderly crystal structure. They’re more jumbled up, like the atoms inside liquids.

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  6. Tech

    This crumb-sized camera uses artificial intelligence to get big results

    Researchers have developed a camera the size of a coarse grain of salt that takes amazingly clear photos.

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  7. Microbes

    Scientists Say: Bacteria

    Bacteria get a bad rap for making people sick, but only a tiny portion of these single-celled creatures cause disease.

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  8. Life

    In blazing heat, some plants open leaf pores — and risk death

    When heat waves and droughts collide, water is precious. Some thirsty plants try to cool off by opening tiny pores — only to lose water even faster.

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  9. February 2023 Puzzle Solution

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  10. Space

    Explainer: Telescopes see light — and sometimes ancient history

    Different kinds of telescopes on Earth and in space help us to see all wavelengths of light. Some can even peer billions of years back in time.

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  11. Space

    The long-awaited James Webb Space Telescope has a big to-do list

    The James Webb Space Telescope has been in the works for so long that new fields of science have emerged for it to study.

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  12. Chemistry

    Explainer: What is a metal?

    Metals can bend and pull without snapping, and conduct electricity. The reason: Their atoms tend to lose electrons to neighboring atoms.

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