Title: Comets
First published: 1984
Description: Explains what comets are, how they are formed, and how their unusual orbits bring them into earth's view at predictable intervals, with a special focus on Halley's comet
Subjects: Juvenile literature, Comets, Astronomy, juvenile literature, Nonfiction, juvenile
Places: Halley's comet
LC classification: QB721.5 .B73 1984