Examines the discovery, study, and characteristics of black holes, and discusses how scientists created a telescope--the Event Horizon Telescope--to view one. Also explores future exploration of black holes. Includes color photographs, a glossary, fact boxes, sidebars, and further resources. Teaching Books: https://www.teachingbooks.net/tb.cgi?tid=87740.

Black hole discovery -- What are black holes? -- Studying black holes -- Future exploration.