Introduces black holes, discussing the relativity theory of Albert Einstein, the discovery of black holes, the data that scientists use to study them, and scientists' studies of the black hole at the center of the MilKy Way.

What is a black hole? -- The black hole at the center of the Milky Way -- Kaboom!, when black holes collide -- What's on the horizon? -- Black holes just wanna have fun : they burp, they blow bubbles, and they play in galactic sandboxes.