Ceres is actually considered to be one of the largest Asteroids and is the only dwarf planet in the inner Solar System. It has a rocky iced body and has a diameter of 950 kms. It was discovered by Giuseppe Piazzi on 1st January 1801. It is believed that the surface of Ceres probably is a mixture of water ice and hydrated minerals. The unmanned spacecraft of NASA by the name Don was launched in 2007 and is expected to land on the planet in 2015.
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