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Evaluate a solution to a complex real-world problem based on prioritized criteria and trade-offs that account for a range of constraints, including cost, safety, reliability, and aesthetics, as well as possible social, cultural, and environmental impacts.
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EarthThese ultra-long experiments outlive their scientists — on purpose
To study phenomena that unfold over decades or even centuries, scientists may launch projects they may never see finished.
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Science & SocietyBehold the world’s weirdest library — which might save your life
This bizarre collection of “standard reference materials” help ensure the safety of waterways, buildings, medicines, foods and much more.
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Artificial IntelligenceAI shouldn’t be trusted with your mental health, teen finds
Her research suggests that ChatGPT and similar AI systems are not suitable replacements for human therapists.
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ChemistryStructures that work like Hermione’s magic handbag land a chemistry Nobel
Richard Robson, Susumu Kitagawa and Omar Yaghi developed these metal-organic frameworks, which can trap pollutants, collect water from air and more.
By Meghan Rosen -
Health & MedicineFloss delivers flu vaccine to mice needle-free
The creative solution may one day allow people to vaccinate themselves — no injection needed.
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PhysicsDiscoveries behind quantum computers win the Nobel Prize in physics
John Clarke, Michel Devoret and John Martinis turned up quantum effects in an electric circuit. This 1980s find underlies today’s quantum computers.
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Space35 years on, Hubble continues to revolutionize astronomy
The Hubble Space Telescope is an icon in astronomy. Here are some of its most out-of-this-world images.
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PhysicsHow polarized and UV-blocking sunglasses protect our eyes
Their filters can cut glare to help us see more clearly. The best ones also filter out the sun’s UV rays — even on cloudy days — to limit eye damage.
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Health & MedicineTikTok skincare routines may cause more harm than good
Many videos used lots of costly skincare products full of potential irritants. And most left out the most important way to care for your skin: sun protection.
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TechThis 3-D printed robot runs on air, not electricity
The soft, flexible robot can cover uneven ground and even walk underwater.
By Skyler Ware -
LifeResearch without lab animals? New tech is making it possible
For decades, scientists have worked to phase out the use of animals in research. AI, ‘lungs’ on a chip and more are bringing that goal closer.
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EnvironmentEco-friendly sunscreen? That’s bananas!
Bananas make their own natural sunscreens. A teen thinks these could work to protect our skin as well, while being safe for aquatic life.