Numerous craters of varying sizes, many of which have central peak, were observed. On Ceres, central pits in large craters are much more common. All discoveries could prove a past activity on this planet’s surface, including landslides and collapsed structures. Some similarities linked those discoveries to a previous one: Nasa’s Curiosity Rover has captured images of a perfectly formed pyramid on Mars, possibly the result of intelligent design. The hypothesis of the existence of ancient civilizations is considered. Ceres is the largest object in the asteroid belt between Mars and Jupiter. Dawn – the first mission to visit a dwarf planet – arrived at Ceres on 6 March. It will remain at its current 2,700-mile altitude until 30 June, and then will descend to 900 miles in August.