by Sara HUSSEIN Agence France Presse Tokyo, Japan (AFP) – The specks are tiny. No, really tiny. Smaller than the diameter of a hair. But they hold billions of years of history that reveal some of the secrets of asteroids. The three minute particles from an asteroid called Itokawa show some of these space rocks are vastly older than was thought, and are much tougher. And that could mean we need bolder ways to prevent […]