Summary Black holes are nature's ultimate abyss, capable of swallowing up a star the size of our Sun in seconds. There are millions of them out there, too dark to see, but gobbling up everything that gets too close. More frightening still, there is one at the center of the Milky Way - our galactic home. But is there more to a black hole than just darkness? This film looks at these menaces in a new light, to discover that they are not only destroyers - they are vital anchors for the planets and stars in galaxies like our own. Stunning CGI animation strips away the event horizon and explores what happens past the point of no return.

• Documentary