Physics
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We summarize the week's scientific breakthroughs every Thursday.
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		PhysicsDespite a new measurement, the neutron’s lifetime is still puzzling
Two techniques for gauging the subatomic particle’s longevity disagree.
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		Particle PhysicsThe proton’s weak side is just as feeble as physicists thought
Scientists make the most precise measurement yet of the proton’s weak charge and find it agrees with predictions.
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		AstronomyGaia delivers a trove of data revealing secrets of the Milky Way
Astronomers are already using Gaia’s new information to estimate the galaxy’s mass, the diameter of exoplanets and more.
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		MathReal numbers don’t cut it in the real world, this physicist argues
Physicist Nicolas Gisin argues that real numbers don’t properly represent the natural world, which is a good thing for free will.
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		Physics‘Time crystals’ created in two new types of materials
A state of matter that repeats itself in time, not space, was found in certain liquids and a solid.
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		PhysicsNeutron stars shed neutrinos to cool down quickly
Scientists find the first clear evidence of rapid cooling of a neutron star by neutrino emission.
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		Particle PhysicsReaders puzzled by particle physics and a papal decree
Readers had questions about neutrinoless double beta decay and the history of domesticated rabbits.
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		PhysicsA DIY take on the early universe may reveal cosmic secrets
A conglomerate of ultracold atoms reproduces some of the physics of the early universe.
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		EnvironmentThis plastic can be recycled over and over and over again
A new kind of polymer is fully recyclable: It breaks down into the exact same molecules that it came from.
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		Quantum PhysicsSplit atom clouds get entangled in quantum tests
Scientists create quantum links between clouds consisting of thousands of atoms.
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		Quantum PhysicsSpooky quantum entanglement goes big in new experiments
Scientists entangled the motions of two jiggling devices that are visible with a magnifying glass or even the naked eye — if you have keen vision.
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		PhysicsHow ravens caused a LIGO data glitch
Ravens pecking at frosty pipes caused a glitch in gravitational wave data.