Did you ever wonder? Is there really the possibility of life on another planet? How do our bodies work to help us avoid getting sick? What’s the best way to invent something new? Who is the fastest human? Why does science even matter? Asking questions like these helps us learn and explore lots of new things. On these pages, you’ll find the answers to some of your biggest questions—and quite a few more that you may never have even thought of! Being curious is how we get smarter and make the world a better place. You never know: The questions you come up with may lead to science’s next big discovery. So keep on reading and enjoy the adventure ahead!