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| Title: | Howstuffworks "How Black Holes Work" | |
| Description: | Black holes are some of the most amazing objects in the universe -- they may even hold many galaxies together! Learn all about them! | ||
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Category: |
Kids and Teens > School Time > Science > Astronomy and Space > Black Holes | ||
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URL: |
http://www.howstuffworks.com/black-hole.htm |
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