"What's the difference between an asteroid and a planet? Scientists struggled with this question for many years with regard to Ceres. Today, it's called a 'dwarf planet' and because of the Dawn Probe, we know a lot about it. Robots have many cool features that bring the far reaches of space to scientists on Earth, and readers learn about the amazing technology the Dawn Probe used to explore Ceres. Up-close photographs and full-color illustrations...

"Space missions take years to plan. But they also take years to execute, so special robots are used to study deep space instead of astronauts. Pluto is so far away, the New Horizons probe took 10 years to get there! The main content describes the amazing technology used to build the probe as well as what tools it uses to study Pluto and the Kuiper Belt. Informative sidebars introduce the scientist who discovered Pluto and other fascinating STEM information....

Describes the history of space exploration, from the first life forms to survive in weightless space conditions to the first manned space flights, long-term space missions, and the possibilities of life on other planets.

Discover the living things that function within the tundra, from polar bears and caribou to seabirds and foxes.

Find out what lives in wetlands, from herons and algae to alligators and jaguars.