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The Universe Forum's role as part of NASA's Education Support Network concluded in September, 2009. Please visit NASA at for current information about NASA's science, education, and public outreach activities.

Where did the idea for black holes come from, and what are these strange beasts like?
link to what are black holes

- If they're really black, then how can we see them? What's the evidence that they exist?
link to do black holes really exist

- What secrets do black holes hide? What are they trying to tell us about our universe?
link to what are we trying to find out
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