Friday, September 17, 2010

APOD 1.3

The Veil Nebula

A nebula is an expanding cloud that is the result of an exploding, massive star.  Light from the original supernova explosion that caused The Veil Nebula, likely reached Earth about 5,000 years ago! It is 1,500 light years away, and appears to have a span of 6 times the diameter of the moon.  That means it is approximately 70 light years wide! It is hard for the human mind to even understand such massiveness.  The veil nebula is so large that the brighter parts of it are considered to be seperate nebulae. 

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