All Stories
- Life
In evolution, last really can be first
By tracking bacteria for thousands of generations, researchers show how small DNA changes can eventually put underdogs on top.
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Body & Brain
Pack-a-day smoking habits are on the wane, plus Haitian cholera and omega-3s in this week’s news.
- Archaeology
Pueblo traded for chocolate big-time
New evidence of ancient Pueblo cacao drinking feeds a theory of long-distance trade.
- Tech
Radiation: Japan’s third crisis
As if the magnitude-9 earthquake on March 11 and killer tsunami weren’t enough, a new round of aftershocks — psychological ones over fear of radiation — are rocking Japan and its neighbors.
- Humans
Record ozone thinning looms in Arctic
Depletion could expose the northern midlatitudes to higher-than-normal ultraviolet radiation in coming weeks.
- Earth
Cave formations record Black Sea deluges
Stalagmites in a Turkish grotto document 670,000 years of flooding.
- Astronomy
New study gives dark energy a boost
Measurements provide further evidence for a cosmic push that is accelerating the expansion of the universe.
- Earth
Japan quake location a surprise
Based on regional tectonics, seismologists expected the biggest events in the island's southern half.
- Humans
New stars of science honored in D.C.
The 2011 Intel Science Talent Search awards prizes to 10 young researchers.
- Life
Don’t trust any elephant under 60
Herds with older leaders are more attuned to danger, a study finds.
- Humans
Intel Science Talent Search finalists reflect on their week in D.C.
Intel Science Talent Search finalists visit President Obama and members of Congress in prelude to announcement of top prize winners.
- Health & Medicine
Blood tests could forewarn of emphysema
Certain microparticles or proteins suggest nascent disease, even in smokers who appear healthy, two studies show.
