But in nineteen thirty-four, she saw something that would change her idea of the world.

VOA: special.2009.05.10

Hubble's discovery meant a major change in our idea of the universe.

VOA: special.2009.04.29

"I think it is a good idea if he can change the minds of all American people who think that Muslims are criminals.

VOA: standard.2009.06.04