Children's LiteratureHumans have always been explorers. Today some of the most exciting discoveries are being made in outer space. Astronomers explore using telescopes to learn about the objects in space. Most of these telescopes are on Earth with one major exception, the Hubble Space Telescope. The Hubble circles the Earth. It was launched into orbit in 1990. We have learned a lot about space from the photographs taken by the Hubble Space Telescope. The instrument was named after an important astronomer, Edwin Hubble, who spent years studying the sky. The first human traveled into space in 1961. The first voyage to the Moon was in 1969. The next destination for human explorers going into outer space is Mars. NASA has already sent robots, or rovers to explore the surface of Mars. This book is one of the "Science Matters" series for young elementary school students. A standardized format features a fact sheet for the volume topic, biographies of scientists, a map of the solar system and a quiz to review information presented in the book. There are also web links and a glossary. These books are nicely illustrated, primarily with photographs, and the information is well organized for this age group. 2003, Weigl Publishers, Ages 5 to 9.