Chemistry
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Chemistry
Quantifying the “gene for” fallacy
Looking at one gene at a time misses about a third of the genes that contribute to the way a cell functions, scientists say.
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Life
Viruses rewritten
Scientists could create wimpy versions of real viruses to develop vaccines for emerging diseases.
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Chemistry
Catching your breath
Scientists are investigating how to use the human breath to diagnose diseases and environmental ills.
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Health & Medicine
No babies, no hormones
A radically different form of contraception would prevent pregnancies with small molecules of RNA.
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Health & Medicine
Virus versus virus
Customized RNA snippets delivered by a harmless virus could someday provide a new way to combat the hepatitis B virus.
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Chemistry
Small, But Super
These 'atoms' can't leap tall buildings in a single bound, but they have special powers.
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Chemistry
Life before proteins
Spheres of fat suggest a way that life on Earth could have gotten started.
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Chemistry
Deciding Who’s First
Oxygen serves as the focus of who to credit with a discovery – and why.
By Janet Raloff -
Archaeology
Footprints in the ash
Humans may have been walking around what is now central Mexico 40,000 years ago.
By Sid Perkins -
Chemistry
Kavli Awardees Named
Norwegian Academy awards three novel and hefty prizes to three teams of scientists.
By Janet Raloff -
Chemistry
Bug be gone
Using software that mimics neural networks, researchers have found new mosquito repellents that last longer than commercially available repellent.