News
- Health & Medicine
Gel shows promise against HIV
Scientists have developed the first topical treatment that can prevent HIV infection among women.
- Life
Stuck in the past
Reprogrammed stem cells retain molecular memories of their former identities, two new studies show.
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- Chemistry
Different strokes
Though they share the same design, new micromachines are not a synchronized swimming team.
- Psychology
DNA variant may make heavy boozing a team sport
People who inherit a particular gene variant may find it more appealing to drink a lot of alcohol when they see others doing so.
- Life
Animal sperm arose once
A gene governing production of male reproductive cells goes back to a common ancestor that lived about 600 million years ago, a study finds.
- Health & Medicine
Genetics may underlie some kidney failure in blacks
Gene variants that offer protection against African sleeping sickness may also put carriers at renal risk, a new study finds.
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A violent tail
The MESSENGER spacecraft finds powerful magnetic storms on Mercury, along with signs of surprisingly recent volcanic activity.
- Chemistry
Smelling the menu
Mouse breath triggers special cells in the nose that help send a safe-to-eat message.
- Health & Medicine
Everyone poops his or her own viruses
The viral denizens of a person’s intestines are unique and don’t change much over time, a study suggests.
- Earth
New ‘walking’ fishes discovered in Gulf oil-spill zone
Pancake batfishes may be getting oiled before they get named.
- Paleontology
Apes and Old World monkeys may have split later than thought
A 29- to 28-million-year-old primate fossil found in Saudi Arabia assists scientists in timing a major evolutionary transition.
