What has a nucleus, coma, and two tails? Why, a comet, of course! The wonder and mystery of comets has excited humans for centuries, and they continue to provide valuable information about the solar system and the creation of the galaxy. This title will introduce striving readers to comets with thought-provoking information, fascinating facts, and engaging images.

The Sun s outermost layer, the corona, is only visible to the naked eye during a total solar eclipse! This important star impacts our daily lives, from providing the necessities of life to affecting our means of communication. Studying the Sun provides information about the galaxy and beyond. This title is one shining star young readers will not want to put down!

Ganymede, one of Jupiter s 53 moons, is the largest moon in the solar system. It is even larger than the planet Mercury! Moons are found throughout the solar system and beyond, circling planets and asteroids. In this book, reluctant readers will find the answers to how moons form, where they are found, and so much more!

Jupiter is the biggest planet in the solar system! This gas giant is also one of the most fascinating. From its famous Great Red Spot to its dozens of moons, Jupiter holds several mysteries for the scientists who study it. This fascinating title will show readers that Jupiter is as interesting as it is huge!

Mercury is the closest planet to the Sun! It may be small, but it is full of extremes. Temperatures range between -300 and 800 degrees Fahrenheit! As it zooms around the Sun every 88 days, the speedy planet is hard to spot. This informative title shows some of the many mysteries scientists have uncovered about Mercury. Its colorful photos, fun facts, and special features are sure to delight any reader interested in space!

Journey to the red planet! Given its similarity to Earth, Mars has long fascinated humans. Today, we are closer than ever to unlocking the mysteries of how Mars formed and whether the planet once held life. Filled with fun facts, special features, and informative text, this title will fascinate anyone who has ever dreamed of traveling to the red planet.

If humans ever make it to Saturn, they won't be able to land on its surface. This enormous planet has no solid ground! Beyond its seven magnificent rings, Saturn swirls with dense clouds of gas. This fascinating planet is on display in this book full of special features, fun facts, and beautiful photos.

Uranus is an ice giant that spins completely on its side! Scientists have studied it since its discovery in 1781, but Uranus remains one of the solar system's most mysterious planets. In fact, only one spacecraft has ever visited the planet. This hi/lo title uses fascinating fun facts, special features, and photos to give readers a crash course on the coldest planet in the solar system!

There are billions of stars in our galaxy, the Milky Way, and billions more throughout the universe. Read how stars are made of burning gases and what holds these gases together. Read about constellations and star maps and which star travelers have used for centuries to find their way.

'Space Science Fiction' was launched in may of 1952. During it's impressive run it published many of Science Fiction's top writers. Collected here in this massive six hundred-plus page anthology are all of the most important stories that were published during its distinguished run. Included here are: 'Second Variety' by Philip K. Dick; 'Youth' by Isaac Asimov; 'To Each His Star' by Bryce Walton; 'Security' by Poul Anderson; 'Divinity' by William Morrison;...