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Where
did the idea for black holes come from, and what are these strange beasts
like?
![link to what are black holes](images/explorebtn.gif)
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If
they're really black, then how can we see them? What's the evidence
that they exist?
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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](images/explorebtn.gif) |
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