National Air and Space Museum.

"People, children especially, have been baffled, bewildered, and even outraged by the fact that Pluto is no longer called a planet. Through whimsical artwork and an entertaining dialog format, this book explains why this is so. Providing a history of the small, icy world from its discovery and naming to its recent reclassification, this book presents a fascinating look at how scientists organize and class our solar system as they gain new insights...

"To celebrate NASA's Hubble Space Telescope and its 25 years of accomplishments, let The Hubble Cosmos fill your mind with big ideas, brilliant imagery, and a new understanding of the universe in which we live. Relive key moments in the monumental Hubble story, from launch through major new instrumentation to the promise of discoveries to come. With more than 150 photographs including Hubble All-Stars -- the most famous of all the noteworthy images...

If you're going to orbit the Earth, moonwalk, or float in space, you need the right outfit. From helmet to space boots, every part of an astronaut's spacesuit is designed for survival. This reader, developed with Smithsonian's popular Air and Space Museum, provides a close look at the suits, boots, helmets, gloves, and other gear astronauts have worn into space, from the early days of space exploration to the present-day. --Publisher.