Like his character in Killers, Ashton Kutcher sometimes craves a life of normality and anonymity.

The West Australian company that surprised gourmands worldwide by proving truffles could be grown outside of Europe has reported a record crop, producing its first ever tonne of the gourmet fungus in a single season.

Worried about Earth-threatening asteroids? One of NASA's newest space telescopes has spotted 25,000 never-before-seen asteroids in just six months.