Tuesday, November 29, 2011

Asteroids


Asteroids are the debris of planets that orbit the Sun. These are different sized chunks of rock,ranging from specks of dust to some which are a few hundred kilometres across.

Asteroids follow different orbits.In the eighteenth century, astronomers were convinced that a missing world existed between Mars and Jupiter.A search was mounted and the first asteroid, Ceres, was discovered in 1801.



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