Bears and birds, people and planets — many things live on planet Earth. But do they live anywhere else? For a long time people have wondered about that. Maybe you have, too. Read and find out how scientists search for signs of life in outer space.
Franklyn M. Branley is one of the co-founders 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 is Astronomer Emeritus and former Chairman of the American Museum-Hayden Planetarium.
Dr. Branley lives in Sag Harbor, New York.
Edward Miller has illustrated A Drop of Blood and What Happens to a Hamburger? for the Let's-Read-and-Find-Out Science series. He lives in New York City.
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