NASA's asteroid probe already found water on Bennu

NASA's OSIRIS-REx asteroid probe only just arrived at its target a week ago but it's already making important scientific observations of the space rock known as Bennu. The mission seeks to learn as much about the asteroid as possible and NASA thinks it might reveal clues about the early days of the solar system and the material that ultimately formed Earth and the planets in our neighborhood. Now, just days after the spacecraft arrived at the rock, NASA is announcing that it's already found evid...