News
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ClimateWanted: New ways to chill air conditioners, fridges
A new amendment to the Montreal Protocol will phase out potent greenhouse gases currently used in air conditioners and refrigerators, prompting a hunt for eco-friendly alternatives.
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Particle PhysicsLatest dark matter searches leave scientists empty-handed
As the most popular candidates for dark matter fail to show up in detectors, scientists are broadening the search.
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NeuroscienceFrequent liars show less activity in key brain structure
Brain activity changed as people lied more, a new study finds.
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PhysicsPhysicists find atomic nucleus with a ‘bubble’ in the middle
Silicon-34 has an unusually small number of protons in its center.
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ChemistryWater softeners get friendlier to health, environment
New technology softens water without adding sodium, which ends up in drinking water and contaminates the environment.
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GeneticsDNA data offer evidence of unknown extinct human relative
Melanesians may carry genetic evidence of a previously unknown extinct human relative.
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LifeVirus triggers immune proteins to aid enemy
Virus-fighting proteins in the immune system can sometimes help out their targets instead.
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PaleontologyAncient armored fish revises early history of jaws
The fossil of a 423-million-year-old armored fish from China suggests that the jaws of all modern land vertebrates and bony fish originated in a bizarre group of animals called placoderms.
By Meghan Rosen -
Planetary ScienceExperts don’t agree on age of Saturn’s rings
Saturn’s rings could be almost as old as the solar system, and the Cassini craft is poised to help find out.
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NeuroscienceMice smell, share each other’s pain
Pain can jump from one mouse to another, presumably through chemicals detected by the nose.
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ArchaeologyWild monkeys throw curve at stone-tool making’s origins
Monkeys that make sharp-edged stones raise questions about evolution of stone tool production.
By Bruce Bower