Thomas Starzl, Trailblazer In Organ Transplantation, Dies At 90
The doctor, who performed the world's first liver transplant surgery in 1963, eventually earned the moniker "father of transplantation."
Recently, seven rocky, Earth-like planets were discovered orbiting a nearby star adding to a catalog of 3,500 known extrasolar or exoplanets. Find out how we find planets like these, and what's so cool about them.