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.
By Ron Cowen -
LifeHagfish may eat through their skin
The odd dining habits of carrion-eating protovertebrates may be relevant to the evolutionary transition to land.
By Susan Milius -
HumansSmelling a rat in a bag of chips
A forensic scientist shares tales from a very special victims unit.
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Health & MedicineHalf of adult males carry HPV
Human papillomavirus, a sexually transmitted pathogen that can cause cancer, shows up often in men and lingers for months, a study shows.
By Nathan Seppa -
EarthPCBs may impair fertility
A study of women undergoing in vitro fertilization finds reduced embryo implantation among women with higher levels of one type of the banned chemicals.
By Janet Raloff -
ChemistryDiamond cousin proposed
Researchers predict a new form of carbon that could, if made, have industrial uses.
By Devin Powell -
Health & MedicineHow brains guesstimate
Experiments show how the human mind lowballs moving objects’ speed when information is lacking.
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PsychologyClub drug tied to out-of-body sensations
A Canadian survey finds a close link between ketamine and bizarre physical experiences.
By Bruce Bower