Humans have wondered “what’s out there” since we took our first look up at the night sky. Only in the last decades, however, have we had a real chance to find out the answers. Inside, follow the path of science and courage that took us outside of our world, meet the people who made the discoveries, and find out where we’re going next. Few areas of human achievement have had a bigger impact than science and technology. Every part of our lives is affected by the discoveries, inventions, and breakthroughs made in a wide variety of fields. In this series, get a solid introduction to some of the most important parts of science and technology to help you get ready to make your own contributions in the future! Key Icons to look for have been placed throughout the books in this series in an effort to encourage library readers to build knowledge, gain awareness, explore possibilities and expand their viewpoints through our content rich no n-fiction books. Key Icons are as follows: Words to Understand are shown at the front of each chapter with definitions. These words are then used in the prose throughout that chapter, and are emboldened, so that the reader is able to reference back to the definitions- building their vocabulary and enhancing their reading comprehension. Sidebars are highlighted graphics with content rich material within that allows readers to build knowledge and broaden their perspectives by weaving together additional information to provide realistic and holistic perspectives. Educational Videos allows the reader to view videos by scanning our QR codes, providing them with additional educational content to supplement the text. Examples include news coverage, moments in history, speeches, iconic sports moments and much more! Text Dependent Questions are placed at the end of each chapter. They challenge the reader’s comprehension of the chapter they have just read, while sending the reader back to the text for more careful attention to the evidence presented there. Research Projects are provided at the end of each chapter as well and provide readers with suggestions for projects that encourage deeper research and analysis. A Series Glossary of Key Terms is included in the back matter contains terminology used throughout the series. Words found here broaden the readers knowledge and understanding of terms used in this field.

Everyone makes mistakes, but they're not often on display for the whole world to see. These blunders in exploration have gone down in history and will never be forgotten.

The popular imagination has seen a resurgence of interest in space research. It is fueled by the discovery of over 1,000 exoplanets, promising discoveries on Mars, and recent successes in commercial space exploration. Though space exploration remains a high cost, speculative enterprise, scientists and pundits argue we are closer than ever to answering key questions about life in the universe and human prospects of living off-world. The New York Times articles collected in this volume will reveal how concerns about planet Earth and space research development contribute to the quest for space colonization.

There’s so much to see at the bottom of the world! Join a young explorer and his best friend, Mouse, on a sea journey to Antarctica, where they make new friends with penguins and a whale – and have all kinds of fun.

A basic exploration of the parts, variations, and worksites of bulldozers, the leveling and scraping machines. Also included is a pictorial diagram of variations of bulldozers.