Physics
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PhysicsBlack holes might have a temperature
Physicists made a mock black hole in their lab. They used it to show the real, celestial black holes have a slight temperature.
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EarthTrees may become the key to ‘greener’ foam products
Scientists have made an environmentally friendly alternative to plastic-based foams to help keep things cool.
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ClimateSpace weather forecast: Big storms ahead
Scientists studying blobs of energetic particles shot from the sun may help us prepare for stormy consequences on Earth.
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EarthDry sand can bubble like the blobs in a lava lamp
Put two types of sand grains together in a chamber and they can flow like fluids. All it takes is a jiggle and some gas.
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PhysicsScientists Say: Light pollution
Light pollution is when artificial light shines into places that are normally dark. It can disrupt the lives of plants, animals and people.
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PhysicsDying stars can make gold as they collapse into black holes
There are spinning stars in space. Some of them collapse into black holes. Along the way, they may generate a lot of heavy elements — including gold.
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EarthNew insights on how STEVE lights up the night sky
Satellite data and photos snapped by citizen scientists reveal the origins of the strange atmospheric glow called STEVE.
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AnimalsLet’s turn a genie blue
Aladdin’s genie is very magical. He’s also blue. What might explain that? Nature has some tricks on offer.
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PhysicsMeteorites may be excavating lunar water
When meteorites hit the moon, water is released from the moon’s soil. That suggests the moon has water buried all across its surface.
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Materials ScienceAnalyze This: Do exotic woods make better guitars?
When comparing the sound of guitars made from rare and costly woods to those made with common, cheaper alternatives, guitarists couldn’t tell much of a difference.
By Sid Perkins -
PhysicsHeat signatures help track down old and still deadly land mines
A new technique for locating land mines uses infrared cameras on drones. The novel technology uses temperature differences to find camouflaged mines before anyone might accidentally step on them.
By Sid Perkins -
PhysicsHere’s the first picture of a black hole
The Event Horizon Telescope imaged the supermassive beast lying some 55 million light-years away in a galaxy called M87.
By Lisa Grossman and Emily Conover