Since the early 1600s, telescopes have helped human beings build knowledge of space. While early telescopes used two glass lenses to focus light, today's may use mirrors and other materials to "see" much further. This valuable volume teaches readers about the components of telescopes and their functions. They'll read about different types of telescopes, including the newest developments, and exciting discoveries and future missions. Key STEM concepts are highlighted throughout and supported by diagrams and fact boxes.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.