Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

For those with kidney failure, a transplant is often the greatest promise of a healthier, longer life. Yet thousands wait years for a match that never comes. Incompatibility of blood type is one of ...

Look alive, science fans — a new subatomic particle has just dropped after a 20-year search. Discovered by British researchers at the nuclear research laboratory CERN near Geneva, Switzerland, the ...