Hitting the gym helps slow the aging process in space, as well as on Earth, Canadian scientists have found.

The vaccine used to contain the recent swine flu pandemic was effective, but health authorities will need to ramp up the speed and volume of production during the next global outbreak, a World Health Organization official says.

A Japanese researcher who found a way to give mature cells certain characteristics of embryonic stem cells, a process scientists say could eventually lead to cures for spinal cord injuries and other ailments, has been awarded the Balzan Prize for biology.