This is why we think there is a black hole at the center of our galaxy: these stars seem to revolve around empty space.


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This is why we think there is a black hole at the center of our galaxy: these stars seem to revolve around empty space.
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This is why we think there is a black hole at the center of our galaxy: these stars seem to revolve around empty space. - Black hole, Space, GIF
GIF Space Black hole
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