Asteroids are incredible sources of information about the history of our solar system. Planetary geologist and National Geographic Explorer Bethany Ehlmann studies Обои of Ceres, the largest asteroid in the ремень, пояс, пояса between Mars and Jupiter.
Earth is the only planet known to maintain life. Find out the origins of our Главная planet and some of the key ingredients that help make this blue speck in Космос a unique global ecosystem.