Winner of the 2009 American Institute of Aeronautics and Astronautics (AIAA) Children's Literature Award. How do we know that Mars is covered in rusty dust, that a day on Venus lasts longer than its year, and that Neptune has 13 moons? Human exploration! Exploring the Solar System relates the rich history of space exploration using telescopes, satellites, probes, landers, and human missions. This book has been updated to include the recent...