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Particle PhysicsExcess antielectrons aren’t from nearby dead stars, study says
Pulsars might not be behind excess antimatter, gamma-ray observations suggest.
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Tech50 years ago, artificial limbs weren’t nearly as responsive
Artificial limbs have come a long way since 1967.
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NeuroscienceStudy casts doubt on whether adult brain’s memory-forming region makes new cells
An examination of 54 human brains suggests that adults don’t grow new neurons in the hippocampus, contrary to several widely accepted studies.
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Health & MedicineHow dad’s stress changes his sperm
Stress may change sperm via packets of RNA in the epididymis, a mouse study suggests.