When NASA’s Dawn spacecraft arrived at Ceres, scientists expected to find a cold, inactive relic of the early solar system. Instead, they were confronted with bright white patches, strange mountains, ...
On January 1, 1801, a Sicilian astronomer named Giuseppe Piazzi discovered the dwarf planet Ceres orbiting the sun between Mars and Jupiter. At the time, Ceres was considered to be a planet. But after ...
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