Engineering Design
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Health & MedicineWhat to know about using AI chatbots for therapy
More and more young people are turning to AI chatbots for mental health help. There can be risks, and it’s important to know what they are, experts say.
By Aimee Cunningham and Maria Temming -
TechExplainer: What is bioprinting?
Machines can now print tissues, layer by layer, using “inks” made of living cells. This technology brings lab-grown organs closer to reality.
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PhysicsScientists made clocks from an atomic nucleus
These super high-tech timepieces use the chemical element thorium to keep time. And as the clocks improve, they could help solve some mysteries in physics.
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Health & MedicineU.S. sunscreen users are finally getting a new option
FDA will now allow the use of bemotrizinol in U.S. sunscreens. This long-lasting chemical protects against the solar radiation that ages and damages skin.
By Meghan Rosen -
AnimalsChatty cats and talking dogs could one day ‘speak’ in our language
Scientists are making advances in decoding animal sounds. That might someday make animal translators a possibility.
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EnvironmentExperiment: Remove microplastics from water with yeast
Learn how yeast can be used to remove microplastics from contaminated water with this experiment.
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TechNature-inspired rocket-nozzle redesign stands by for liftoff
At the 2026 Regeneron ISEF competition, teens showed how they blasted past a problem that has limited use of super-efficient aerospike rocket engines.
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EnvironmentHawaii is turning fishnets and other plastic trash into roads
Scientists are testing whether plastic pollution from the ocean can be transformed into safe and durable highways.
By Sara Novak -
ChemistryTabletop lightning helps make an alcohol used for fuels and more
Methanol is used in plastics, paints and as a race car fuel. It’s been hard to make. But engineers have found a simple trick: Add lightning to methane.
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Materials ScienceScientists Say: Metal-Organic Framework
Special pockets in these molecular structures make them useful in medicine, climate science and more.
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HumansExperiment: Can humans recognize AI-generated images?
An AI-made picture of an animal or flower might seem harmless, but fake images of people or events can spread misinformation.
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TechPokémon Go players helped build new maps of cities
Players often upload pictures of landmarks. AI can use these to build a virtual 3-D model of a city, which robots might use like a map to navigate the real thing.