Howstuffworks Videos "Hubble: How Hubble Sees"

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Andromeda Galaxy Works (5:06) Watch this NASA "Hidden Universe" video showing how the Andromeda Galaxy works. The Andromeda Galaxy is twice as big ...

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Andromeda Galaxy Works (5:06) Watch this NASA "Hidden Universe" video showing how the Andromeda Galaxy works. ...
Andromeda Galaxy Works (5:06) Watch this NASA "Hidden Universe" video showing how the Andromeda Galaxy works. ...
A black hole is formed when a star collapses from its own gravity; that gravity is so strong that even light can't escap...
A black hole is formed when a star collapses from its own gravity; that gravity is so strong that even light can't escap...
A black hole is formed when a star collapses from its own gravity; that gravity is so strong that even light can't escap...
Andromeda Galaxy Works (5:06) Watch this NASA "Hidden Universe" video showing how the Andromeda Galaxy works. ...
Andromeda Galaxy Works (5:06) Watch this NASA "Hidden Universe" video showing how the Andromeda Galaxy works. ...

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