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Black holes have such strong gravity that nothing, not even light can escape its clutches. We like to imagine that they are far away, like the supermassive black hole in the heart of our galaxy. But there may be black holes much closer to home. We’re just not very good at seeing them – after…

Wholly for your enjoyment, we’ve included several hole-related questions in this quiz. Don’t peek at the answers, or your victory might seem …. hollow!