All Stories

  1. Animals

    How do you build a centaur?

    A centaur has the torso of a human and the body of a horse. It may sound cool, but it wouldn’t work very well.

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  2. Climate

    2020 was warmest year on record for Earth’s oceans

    2020 continued the trend of record-breaking heat for the world’s oceans. The three previous warmest years on record were 2019, 2017 and 2018.

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  3. Earth

    Let’s learn about snow

    Snow is more than just frozen water vapor. Scientists are studying everything from its shape to other planets where snowflakes fall.

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  4. Animals

    Choked by bacteria, some starfish are turning to goo

    For years, researchers thought gooey, dying starfish were infected. Instead, these sea stars are suffocating. And bacteria may be behind it all.

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  5. Animals

    Scientists Say: Organelle

    An organelle is a part of a cell with a particular function. Like organs. But for cells.

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  6. Space

    Space travel may harm health by damaging cells’ powerhouses

    Biochemical changes after going to space suggest that harm to cells’ energy-producing structures, called mitochondria, could explain astronauts’ health issues.

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  7. Computing

    How to fight online hate before it leads to violence

    Counter-speech, artificial intelligence and other tools can help spot online hate — and maybe thwart it. New studies show how.

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  8. Archaeology

    Harsh Ice Age winters may have helped turn wolves into dogs

    In the Ice Age, Arctic hunters may have turned to some game for their fatty bones. Much of those animals’ meat might have been left to domesticate dogs.

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  9. Climate

    Analyze This: 2020 ties with 2016 for hottest year on record

    Last year capped the warmest decade on record. It coincided with a growing increase of warming greenhouse gases in Earth’s atmosphere.

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  10. Earth

    Space station sensors saw how weird ‘blue jet’ lightning forms

    A mysterious type of lightning in the upper atmosphere has been traced to a brief, bright flash of light at the top of a storm cloud.

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  11. Health & Medicine

    Five questions about COVID-19 vaccine trials in teens, answered

    Scientists are now testing COVID-19 vaccines in teens. Why do teens need a separate trial? And what would happen? We’ve got answers.

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  12. Animals

    Newfound technique allows some tree snakes to climb wide trees

    When a tree is too wide to climb, brown tree snakes use a lasso-like trick to slowly ascend up to snacks.

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