Franklyn M. Branley was the originator of the Let's-Read-and-Find-Out Science series and the author of close to 150 popular books about scientific topics for young readers of all ages. He was Astronomer Emeritus and former Chairman of the American Museum of Natural History-Hayden Planetarium.

Mar 25, 2008
Cover of Volcanoes

Volcanoes

Sep 1, 1993
Cover of Keeping Time

Keeping Time

Nov 13, 1991
Cover of The Christmas Sky

The Christmas Sky