What are black holes? How do we know they're there if we can't see them? You've heard the gossip about what these things can do---now get sucked in by the truth! Learn about their gravitational pull, how far away the nearest one is, why even light can't escape, what creates them, how we can identify where they are, and the history of their discovery. Plenty of thought experiments, photographic examples, illustrations and sidebars are included to make this complex theory simple enough for elementary-aged students to understand. Encourage young star gazers and physicists with this comprehensive look at a fascinating phenomenon! 74 pages with index, glossary, and author's note. Hardcover with dust jacket. Origins are not mentioned, but there are two mentions of 'millions' and 'billions' of years, only one of which refers to the past, rather than a lifespan of a star.