All Stories

  1. Animals

    Cats play fetch — but only when they feel like it 

    Most cats that play fetch pick up the behavior on their own, a study finds. And those felines tend to dictate when fetching sessions begin and end.

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  2. Earth

    The weird sky glow called STEVE is really confusing scientists

    Researchers are trying to figure out the recipe of atmospheric conditions that creates this aurora-like light show.

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  3. Physics

    Physics explains what happens when a lawn sprinkler sucks in water

    Experiments with a floating sprinkler revealed the surprisingly complex physics behind a simple question.

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  4. Space

    This space physicist uses radios to study eclipses

    Nathaniel Frissell uses radio data to study how eclipses affect a layer of the atmosphere called the ionosphere.

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  5. Animals

    Which way is up? Insects may lose track near artificial lights

    Flying insects may use light to figure out where the sky is. But artificial lights can send them veering off course, high-speed video suggests.

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  6. Plants

    Scientists Say: Marcescence

    Autumn turns to winter, yet some trees' dead leaves keep hanging on.

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  7. Animals

    Reindeer can chew food in their sleep

    Brain waves and behaviors suggest that reindeer can doze while chewing.

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  8. Animals

    Spiders that fall into water use reflected light to find land

    When elongate stilt spiders fall into water, they head for areas that don’t reflect light, studies show. This cue appears to signal dry land.

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  9. Ecosystems

    A weird upside-down world lurks beneath Antarctica’s ice

    A vast swath of ocean surrounds Antarctica, hidden under the ice. Here, strange creatures burrow into the dark underbelly of a floating glacier.

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  10. Physics

    Physics explains why poured water burbles the way it does

    The loudness of falling water depends on the height of the pour and the thickness of the stream.

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  11. Animals

    Let’s learn about birdwatching for beginners

    One birdwatcher unpacks the personal and scientific rewards of birding, and how to get started.

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  12. Materials Science

    Scientists Say: 2-D Material

    Two-dimensional materials such as graphene could improve electronics, carbon capture and more.

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