HODENblackhole

Hố đen là một vùng không-thời gian trong vũ trụ mà lực hấp dẫn của nó lớn tới mức ngay cả ánh sáng cũng không thể thoát ra được. Chính vì thế mà chúng ta gặp rất nhiều khó khăn trong việc quan sát cũng như tìm hiểu cách thức hoạt động của chúng. A black hole is a space-time in space where its gravitational force is so great that even light can not escape. Therefore, we have many difficulties in observing as well as learning how to operate them. A black hole is a space-time in space where its gravitational force is so great that even light can not escape. Therefore, we have many difficulties in observing as well as learning how to operate them. A black hole is a space-time space where its gravitational force is so great that even light can not escape. Therefore, we have many difficulties in observing as well as learning how to operate them.