All Stories

  1. Animals

    Blooming jellies

    Jellyfish and other gooey marine creatures are showing up in new places, and scientists are trying to discover why.

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  2. Physics

    Explainer: Understanding light and electromagnetic radiation

    Here's a simple guide to the different types of electromagnetic energy that move as waves.

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  3. Tech

    Undercover detectives

    T-rays are digitally uncovering everything including potential terrorists, buried images on church walls, and subsurface flaws in the foam used to protect space shuttles.

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  4. Health & Medicine

    Blood goes stale—and fairly quickly

    Doctors have long thought it safe to store donated blood for up to 42 days, but some patients do better when the blood they receive is fewer than 14 days old.

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  5. Animals

    Listening to birdsong

    Among certain finches, a lady bird knows when a gentleman bird is sending subtle messages in his calls—ones that people can't detect.

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  6. Health & Medicine

    Recipe for health

    Obesity is on the rise, but there are plenty of things you can do to maintain a healthy weight.

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  7. Animals

    Explainer: Jelly vs. jellyfish: What’s the difference?

    Not all jellies are jellyfish

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  8. Animals

    Animal CSI or from science lab to crime lab

    Scientists are finding new ways to help stop poachers from hunting endangered animals.

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  9. Animals

    Diving, rolling and floating, alligator style

    Alligators use the muscles around their lungs in a surprising way—to help them move quickly and smoothly through the swamps and waterways in which they live.

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  10. Health & Medicine

    Mind-reading machine

    Researchers have used brain scans to measure how the brain "sees" pictures—and to try to predict what a person is looking at.

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  11. Chemistry

    Explainer: What are oxidants and antioxidants?

    Certain chemicals, including many in foods, fight chemical reactions that could harm cells in the body and in wildlife.

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  12. Health & Medicine

    How super are superfruits?

    Fruits are good for you, but some advertisements claim that certain fruits are especially nutritious. Is there science to support the superfruit hype?

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