The planets closest to the Sun-Mercury, Venus, Earth, and Mars-include the world we know and its closest neighbors. However, despite our proximity, these rocky, silicate-based planets still represent so many mysteries yet to discover. Through a trove of images and a narrative bursting with detail, The Inner Solar System imparts what is known about this small corner of the Galaxy, and piques reader interest in the unknown.

The Sun is merely one of some 200 billion stars that make up the Milky Way--and the Milky Way is only one of a billion galaxies in the known universe. Packed with fascinating facts and stunning photography, this book examines the Galaxy humans call home and travels light years away, to the domain of phenomena such as the Oort cloud.

Beyond Earth's small, red neighbor Mars lie the gaseous, giant planets of the Outer Solar System. This book investigates these behemoths and dwarf planet Pluto, as well as other curiosities within the solar system's farthest reaches, such as asteroid fields and the Kuiper belt.

Satellites and robotic spacecraft have long travelled where humankind cannot, or dare not, go. By delving into the pages of this book, readers will learn about the technology, people, and organizations that have made fruitful unmanned space missions a reality.

The Age of Exploration, which spanned roughly from 1400 to 1550, was the first time in history that European powers-eyeing new trade routes to the East or seeking to establish empires-began actively looking far past their own borders to gain a better understanding of the world and its many resources. The individuals who set out on behalf of the countries they represented came from a variety of backgrounds, and included master navigators such as Christopher...

Crossing geographic and cultural boundaries at a time when much of the world remained uncharted was a challenge faced by ancient explorers. Long before the Golden Age of Exploration, an assortment of travellers ventured into the unknown, uncovering untapped riches of land and resources in the process. Readers will become familiar with the lives and journeys of these early explorers, whose number included dauntless leaders-Alexander the Great, Julius...

Girls, Boys, Robots - Everyone is Welcome here! This stellar collection will appeal to both teens and grown-ups who dream of future worlds. ~Kirkus Starred ReviewWhat's it like to be a space station detective? To be homesick for Mars? What do you say when your robotgets you in trouble? Join the adventures of a diverse cast of characters in this year's Young Explorer's Adventure Guide, featuring award-winning writers alongside great new voices. If...

Welcome to a universe of wonder!What's it like to have a mad scientist for a father?Or protect your sleeping city from the terrors of the deep, or save your family spaceship?Blast off for new worlds with the Young Explorer's Adventure Guide Volume 6!"This stellar collection will appeal to both teens and grown-ups who dream of future worlds." Kirkus Review of Books, for the 2018 Young Explorer's Explorer's Guide