왜 아직 우주는 블랙홀에 삼켜지지 않은 것일까?

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Published at : 19 Dec 2021
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우주의 지식은 SF영화가 전부인 사람에게 블랙홀이라는 말을 하면, 모든 것들을 닿자마자 흡입하는, 우주의 마물같은 이미지를 상상할지도 모릅니다.
그렇다면 우주에는 몇 개의 블랙홀이 있는데, 왜 그것들은 우주 전체를 삼켜버리지 않았을까요? 
실은 이미 삼킨 후인 걸까요, 아니면 가까운 장래에 삼켜 버릴까요? 

한 번 가면 다시는 올 수 없는 곳
'빈껍데기'에 구원받다
왜 아직도 우린 살아있을까?
블랙홀우주초대 질량 블랙홀

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