News
- Paleontology
Tooth stranger than fiction
A mammal fossil unearthed in South America resembles ‘Ice Age’ saber-toothed squirrel.
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- Space
Mars’ history is a fluid situation
Recent data from two spacecraft suggest the planet was mostly dry and cold, with a wet, warm subsurface.
- Earth
Pollution may be strengthening Asian cyclones
Sooty brown clouds may underlie the recent emergence of mega-storms striking from India to the Middle East.
- Life
Axing molecular zombies may slow aging
Killing off dormant cells slows the decline of mice genetically engineered to grow old fast.
- Humans
Humans’ entry into Europe pushed earlier
Homo sapiens fossils from Italy and England point to an early arrival and a longer time living alongside Neandertals.
- Physics
The sound of screech
Auditory experts decipher the blood-curdling nature of fingernails on a chalkboard.
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- Life
Nearness key in microbe DNA swaps
Close quarters, like those inside the human body, are the most important factor in determining how often bacteria pick up one another’s genes.
- Health & Medicine
Brain gene activity changes through life
Studies track biochemical patterns from just after conception to old age.
- Humans
Facebook value overstated, study finds
Some estimates of the social networking site's worth appear to make impossible assumptions.
- Psychology
Digital bounty hunters unleashed
Internet technique shows promise as fast way to mobilize huge problem-solving teams.
