"Every generation is filled with the wonder of what's out there beyond our planet, making space travel and exploration one of the most popular science topics of all time. But what happens to all that stuff we send up into outer space? Does it come back down to Earth or stay up there forever? This exciting, high-interest topic attracts even reluctant readers to read about STEAM topics. Fact boxes add extra information that's "Out of this World!" throughout the book. Each spread is complemented with vivid NASA photography."-- Provided by publisher.