RT @RonBaalke: Ceres was the first asteroid discovered in 1801. As of today, there are now over 721,000 known asteroids. https://t.co/dEuKaSmE4I
RT @RonBaalke: Ceres was the first asteroid discovered in 1801. As of today, there are now over 721,000 known asteroids. https://t.co/dEuKaSmE4I