A major medical emergency has never occurred on the International Space Station - but what would happen if it did?
Compulsory annual medical check-ups are yielding impressive results in Cuba.
A novel insecticide sprayer for communities
New research has revealed that personality isn't affected by birth order - but there are other traits that are shaped by whether you're oldest, youngest or in between
Forrest Bird's love of aeroplanes inspired his invention of the ventilator, which saved the lives of millions of premature babies.