On the 23rd and 24th of January, 1930, a young astronomer working in Flagstaff, Arizona, scanned a small patch of the night sky. He was taking pictures of star positions, looking for anomalies that would signal movement somewhere at the edge of the solar system. He took the pictures then set them aside, not realizing…
The Dawn Spacecraft is still orbiting Ceres and sending back some fantastic images. The latest are images taken of the dwarf planet’s north and south poles.
The tallest mountain on Ceres is a split-toned creature that would be at home in Alaska. Explore it, and the still-mysterious white spots in Occator Crater in the latest flyover animation of the dwarf planet.
Stop hoping that Pluto will regain its former designation as a planet. It isn’t going to happen. But the good news is, Pluto is something much cooler than a mere planet. It’s the largest dwarf planet we know, and one half of the first binary planet system. Pluto didn’t get demoted, it got promoted.