This is a generated image of the Oort Cloud. The Oort Cloud, named after astronaut Jan Oort, is a hypothesized "cloud" of ice and dust particles that surrounds our solar system. It is said to have radius of about a light year with the being the center. Some astronomers argue that the matter composing the Oort cloud initially formed near the Sun but were eventually scattered to its current radius by giant planets due gravitational effects.
Source: http://en.wikipedia.org/wiki/Oort_cloud
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