Physics
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SpaceScientists Say: Lagrange point
Between and around a two-body system — such as the Earth and sun — there are five points of prime celestial real estate.
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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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PhysicsScientists Say: Tauonium
No protons, neutrons or electrons. And yet, based on what scientists know about fundamental particles, this variety of atom just might exist.
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PhysicsHere’s why your blood vessels don’t burst under pressure
Cells lining the blood vessels reorganize their inner structures to handle stressful boosts in pressure.
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PhysicsHere’s how rainwater might one day power some of your lights
In tests, the electricity that water droplets made was small, but kept a dozen LEDs lit. This tech might one day power clean energy for wet or rainy places.
By Jude Coleman and Larissa G. Capella -
PlanetsPerseverance took the first picture of a visible aurora on Mars
A faint yet visible aurora has been spotted on Mars. It’s the first such light show seen from another planet's surface.
By Nikk Ogasa -
PhysicsCan you Manu? It’s the science-backed way to max your splash
Forget belly flops and cannonballs. Manu jumps — pioneered by New Zealand’s Māori and Pasifika communities — make the biggest blasts.
By Elie Dolgin -
PhysicsCan a supervillain destroy the sun?
Although our sun is a dwarf yellow star, it’s more than massive enough to weather any attempts to alter it — super or otherwise.
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Materials ScienceThis electric ‘slime’ might help injuries heal faster
Our bodies call in healing cells with an electrical signal. When stretched or squeezed, this gel makes electricity that could boost that alert.
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ChemistryMicro-sparks between water droplets may have started life on Earth
This micro-lightning can drive chemical reactions that produce compounds needed for the natural formation of life on Earth, experiments show.
By Laura Allen -
PhysicsScientists Say: Lepton
Leptons are a quirky class of particles. Besides electrons, they include ghostly neutrinos and hefty muons and tauons.
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PhysicsMuch of the sun’s light is green. Why does it look yellow?
Sunlight's peak intensity is at a green wavelength. Here’s why it doesn’t appear that way to us.