| GMD | Text![]() |
| Publisher | New York, HarperCollins, ©1986; 2000 |
| Subject | Planets -- Pictorial works -- Juvenile literature.Life on other planets -- Pictorial works -- Juvenile literature. |
| Series | Let's-read-and-find-out science book. |
| Description | 31 pages : color illustrations ; 21 x 26 cm. |
| ISBN | 9780064451925 |
| Suitable | From 5 To 9 |