News
- Earth
Young and Restless: Ancient Earth shows moving crust
The oldest rocks in the world show that Earth's shifting crust began its tectonic movements almost 4 billion years ago.
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Gene predicts sleepy performance
Variants in a circadian-rhythm gene predict how well people perform mental tasks when sleep deprived.
- Earth
World’s climate map gets an update
A century-old system of categorizing the world's climates has been updated to include modern weather data, thereby providing researchers with a tool to better verify results of their computer simulations.
- Health & Medicine
Hepatitis B found in wrestlers’ sweat
Traces of hepatitis B have turned up in the perspiration of wrestlers, suggesting that the virus could spread to their opponents and teammates.
