Space junk is any human-made object in orbit around Earth that no longer has a use-and it's a huge problem. This debris includes anything from large satellites and rocket parts to tiny screws and paint chips. Space junk can damage a spacecraft-and also cause issues for humans on Earth. This book takes readers on an exciting out-of-this-world voyage and uncovers cutting-edge technology while supporting STEM and NGSS standards. Each book contains fact boxes, sidebars, a glossary, an index, and places to go for more information"--