Physics

  1. Physics

    A new device uses atoms’ quantum weirdness to peer underground

    Quantum sensors like this one could monitor magma beneath volcanoes or uncover archaeological artifacts.

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  2. Materials Science

    A disinfectant made from sawdust knocks out deadly microbes

    It’s made by pressure-cooking sawdust and water, is cheap and easy to make — and could lead to greener cleaning products than chemicals used today.

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  3. Chemistry

    New process can transform urban CO2 pollution into a resource

    Researchers have developed a liquid metal that breaks down carbon dioxide in the air, converting it from a climate threat into a valuable raw material.

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  4. Physics

    Scientists Say: Dark Energy

    Dark energy is the unknown force causing the universe to expand faster and faster.

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  5. Environment

    How we choose to pay has hidden costs for the planet

    Whether cash or credit, phone apps or digital currencies — all forms of payment have behind-the-scenes costs. And these can vary dramatically.

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  6. Environment

    ‘Mining’ cryptocurrencies pollutes the real world

    Bitcoin and other cryptocurrencies exist only online. Yet the environmental impacts of their networks affect the real world.

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  7. Physics

    Explainer: How do mass and weight differ?

    Learn why these terms aren’t the same and which to use where. And should you report your results in kilograms? Pounds? If in doubt, try using newtons.

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  8. Physics

    Why some icicles become scallops not spikes

    The newfound — and at times quirky — shapes reflect the density of water surrounding submerged ice.

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  9. Space

    Wild art? No, it’s a radio image of the heart of our Milky Way

    Eyelash-like radio filaments accent the brightest feature in this image — a supermassive black hole.

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  10. Environment

    Clothes dryers may be a major source of airborne microplastics

    Scientists thought washing machines were a leading contributor of microplastics. Now it appears dryers may be an even bigger problem.

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  11. Physics

    Analyze This: Masks cut the distance that spit droplets fly

    Both cloth masks and surgical masks reduced the distance spit traveled from a person talking or coughing by at least half, compared with no mask.

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  12. Physics

    Explainer: Gravity and microgravity

    The force of gravity holds us on the ground, keeps planets in orbit and extends throughout space. A very weak gravitational pull is called microgravity.

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