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After all, what about black holes? Lets define them: They are something deep in space out of anyones reach, they suck everything into them even light. So someone here once told me that I'm stupid, well he didn't say it that directly, because I of thinking that black holes dont exist, but how can you prove that something exists if you cant see, touch, smell, taste or hear it? I mean if someone says he has seen a black hole himself then he surely is a liar because you cant see a black hole since it sucks light into it.
Nope, you can't see black holes. But you can prove them through light distortion and all stuff like that. They are completely provable. There's also one at the middle of every galaxy I believe. Do your research.