But there are images of binary star systems consisting of one normal star and one black hole, and of the central regions of Galaxies that are believed to contain black holes. 但是有由一個(gè)黑洞和一個(gè)正常恒星組成的雙子星系統的圖像，和被認為包含有黑洞的星系中心區域的圖像。
However, if a black hole passes through a cloud of interstellar matter, or is close to another "normal" star, the black hole can accrete matter into itself. 然而，當一個(gè)黑洞穿過(guò)一片星云，或者靠近另一個(gè)正常恒星時(shí)，黑洞將會(huì )使它自身的物質(zhì)增加。
