Find out about the fascinating discoveries astronomers have made—and the mysteries that remain—about stars, dwarf planets, and exoplanets.

The Mystery of Mars

In The Mystery of Mars, pioneering astronaut Sally Ride and noted science writer Tam O’Shaughnessy present a comprehensive overview of our planetary neighbor. With its atmosphere, rocky canyons, extinct volcanoes, and icy polar regions, Mars has many things in common with Earth. Water once flowed over its surface, and it’s possible that life may have existed there. Comparing the two planets’ evolution, geology, and geography, the authors explain what we know about Mars today—and what we hope to learn in the future.

For readers grade 4 and up
48 pages, full color
8 3/4 by x 11 5/8 inches, hardcover

The Third Planet

Sally's two flights aboard NASA's space shuttle gave her a spectacular view of Earth and a unique perspective on our planet. In The Third Planet: Exploring The Earth From Space, she describes what looking down from space reveals about Earth's complex and delicate environment. She and co-author Tam O'Shaughnessy explore the relationships between the atmosphere, oceans, landmasses, and living things. From microscopic plankton in the ocean to the dense rainforests of the tropics, life is evident everywhere on Earth—including human life, which affects Earth in ways that are visible even from space.

“…a classic…” Kirkus Reviews

Winner of the American Institute of Physics Children’s Science Writing Award

NSTA/CBC Outstanding Science Trade Book for Children

For readers grade 4 and up
46 pages, full color
8 3/4 by x 11 5/8 inches, hardcover

Voyager: An Adventure to the Edge of the Solar System

Launched in 1977, the two tiny Voyager spacecraft made an extraordinary journey across billions of miles of space to give scientists their first close look at the solar system’s most distant worlds. Pioneering astronaut Sally Ride and noted science writer Tam O’Shaughnessy re-create the Voyager adventure in this dramatically illustrated book. They describe the spacecraft’s astonishing discoveries, from previously unseen rings around the giant planets to unimagined volcanoes on their moons and unbelievably violent storms in their atmospheres.

NSTA/CBC Outstanding Science Trade Book for Children
AAAS SB&F Best Children’s Science Book

For readers age 9 and up
40 pages, full color
8 3/4 by 11 5/8 inches, hardcover

Our Changing Climate: The Poles

Earth’s poles provide a front-row seat for climate change. The Poles explain that the Arctic is changing faster than any other place on Earth. The Antarctic is also changing. The book explores what some of the world’s best climate detectives have uncovered about these frozen places. Readers find out what has happened in the past, what is happening now, and what may happen to our planet’s poles in the future.

Grades: 3-8
Lexile level: 890L
40 pages, full color
7 by 9 inches, paperback