News
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Health & MedicineStudy upgrades protons’ risk to DNA
Proton radiation causes worse breaks in DNA than researchers had expected.
By Janet Raloff -
ChemistryMembrane purifies gas
Researchers have synthesized a membrane that may purify hydrogen more efficiently than conventional chemical methods do.
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Transplant reroutes cells from sperm to eggs
Fish cells destined to become sperm can become eggs when transplanted into larvae.
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EarthFinding dirty diesels
Just a few diesel-fueled vehicles account for much of traffic-related soot.
By Janet Raloff -
TechNew View: Speedy microscope takes fuller look at the nanoworld
Action movies of molecules and a better feel for microscopic surfaces could flow from a radically revised version of the atomic-force microscope.