Think of it like a playground swing: if you push at the exact same rhythm that the swing naturally moves, the arc gets wider.

Remember when Japan sent a spacecraft to an asteroid 180 million miles away to scoop some dirt off the surface? Six years on from its arrival to Earth, that sample has yielded some insights about what ...

From handwashing being unnecessary to women's wombs moving around and causing hysteria, these beliefs might be shocking today-but they were once dogma.