Scientific American
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World’s Smartest Physicist Thinks Science Can’t Crack Consciousness
String theorist Edward Witten says consciousness “will remain a mystery”
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Damage to Pea-Size Gland May Cause PTSD-Like Symptoms
Soldiers’ with traumatic brain injury might suffer from undiagnosed but treatable hormonal disorders
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Maybe Life in the Cosmos Is Rare After All
The conclusion that the universe is teeming with biology is based on an unproved assumption
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What a Long-Ago Epidemic Teaches Us about Sleep
A form of encephalitis that caused both wakefulness and profound somnolence reveals much about our inner clocks
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What Would It Take to Prove the Zika–Microcephaly Link
Public health officials are not yet ready to say the connection is causal
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Gone in 2015: Commemorating Ten Outstanding Women in Science
These notable researchers who passed away during the year just ending made key contributions to ecology, planetary science, medicine, chemical engineering, and more.
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Super Spiral Galaxies Amaze Astronomers
A new breed of giants raises questions about how the biggest galaxies arise
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Genio matemático resuelve el acertijo de un maestro
Terence Tao, ganador de la Medalla Fields, resuelve el problema de la discrepancia de Erdös.
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A Red Flag for a Neurodegenerative Disease That May Be Transmissible
Animal experiments show how a just-discovered prion triggers a rare Parkinson’s-like disease