Software aims for safer bypass operations.
Computers that can simultaneously process information in numerous alternate realities are less theoretical than you might think.
The human liver cells in Linda Griffith's miniature device behave just as they would in the body, permitting more accurate drug and toxin testing.
Do the bounties of manned space travel justify the risks?
In the wake of the Space Shuttle Columbia disaster, a new generation of rocket-powered launch technologies gets a closer look.