An asteroid sample collected by NASA has touched down on Earth, giving scientists the opportunity to learn more about the origins of the solar system and capturing a piece of a massive space rock that has a chance of colliding with our planet in the future. It's the first time the agency has accomplished such a feat. Seven years after launching to space, the OSIRIS-REx spacecraft flew by Earth Sunday to deliver the pristine sample from the near-Earth asteroid Bennu. 📸: NASA Cre: CNN