News
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EarthLow sperm counts linked to fetal effects
Low male fertility may partly stem from chemical exposures in utero, an anatomical study suggests.
By Janet Raloff -
SpaceA bid to implode cosmic ray theory
Streams of fast-moving particles aren’t fueled just by supernovas, a new study suggests.
By Devin Powell -
Enzyme revives long-term memories
Increasing levels of a natural substance in the brain helps rats remember old times.
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LifeGood gene type for cancer bad for stroke
A DNA variant that helps prevent tumors may diminish the brain’s recovery after an interruption in blood supply.
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SpaceSun’s doldrums likely to last
Despite a recent flare, solar physicists project low activity for up to a decade.