Children Exploring the Universe 探索宇宙的孩子

Real questions asked by kids, answered by experts!From time travel to Einstein, from mysterious black holes to Halley's Comet  each interesting and rigorous knowledge will satisfy children's curiosity about the universe!         Do you need to plant moss before moving to Mars?Do astronauts’ sleeping bags need to be fixed to the wall to prevent them from floating away?Will a spaceship fall into a black hole?Why are the planets round and not flat?       This book was called by the French children's popular science magazine to provide answers for children with interesting but rigorous text and light and funny illustrations.     If you have ever wondered whether there are aliens in the universe, whether humans can take a time machine and go back in time, how stars are born, how planets are named... but you can't understand the complicated explanations on the encyclopedia website, This interesting universe reader can meet your needs, and it can also stimulate young readers' curiosity