Stars are collapsing in a deep black hole attracted by the huge gravitational field. The black hole looks like an eye or an iris in the sky. Elements of this image furnished by NASA._站酷海洛_正版图片_视频_字体_音乐素材交易平台

Stars are collapsing in a deep black hole attracted by the huge gravitational field. The black hole looks like an eye or an iris in the sky. Elements of this image furnished by NASA.