Chennai, : Prime Minister Manmohan Singh on Friday said the 150-year-old Madras university was a unique and great institution as it had produced several distinguishedpersonalities, including two Nobel laureates ...

Conventional wisdom suggests that stress accelerates aging -- but is it really true? Evolutionary studies of aging use short-lived animals under laboratory conditions -- constant temperature and humidity, no parasites, superabundant food. researchers identified individual stilt-legged flies in their harsh natural environments while simultaneously monitoring their cousins in the lab. In males, the rate of aging was as least two times greater in the wild. For both sexes, life in the wild was dramatically shorter. More study of how environment affects gene expression is needed.

The European Space Agency's comet chaser, Rosetta, has flown by a small body in the main asteroid belt, asteroid Steins, collecting a wealth of information about this rare type of minor Solar System body.

Known as the national institute for Mathematical and Biological Synthesis, or NIMBioS, the center is funded by a $16 million award from the National science Foundation and is located at the university of ...