Physics
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PhysicsScientists explain mystery of triangular snowflakes
A snowflake's fall helps determine its shape.
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PhysicsEarth from the inside out
An invisible particle sheds light on the mysterious interior of the Earth.
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PhysicsHold on to your stars, ladies and gentlemen
Our galaxy is heavier and spinning much faster than scientists thought.
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PhysicsExplainer: The particle zoo
Various subatomic particle types are compared to how they oddly relate to animals in a zoo.
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PhysicsIceCube science
To find some of the smallest things in the universe, scientists have to think big.
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PhysicsExplainer: Understanding light and electromagnetic radiation
Here's a simple guide to the different types of electromagnetic energy that move as waves.
By Janet Raloff -
TechUndercover detectives
T-rays are digitally uncovering everything including potential terrorists, buried images on church walls, and subsurface flaws in the foam used to protect space shuttles.
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PhysicsPowering ball lightning
A new study might help explain what fuels bouncing balls of fire that occasionally form in nature.
By Emily Sohn -
PhysicsDiamond glow
Rare diamonds that glow in the dark may help scientists distinguish real gems from fake ones.
By Emily Sohn