Have you ever wondered what it would be like to go into outer space? Soon you might be able to find out! For years, only trained astronauts were allowed to travel through space, but now lots of companies are creating spacecraft that will allow regular people to experience space for themselves. World View Enterprises wants to take people to near space using a helium balloon. And Virgin Galactic has already sold hundreds of tickets for a ride on its Unity spacecraft. But is this kind of space travel safe? Will these new spacecraft be able to get off the ground? Read this book to learn more about private space travel!
购买此电子书可免费获赠一本!
语言 英语 ● 格式 PDF ● ISBN 9781512427974 ● 出版者 Lerner Publishing Group ● 发布时间 2017 ● 下载 3 时 ● 货币 EUR ● ID 5034768 ● 复制保护 Adobe DRM
需要具备DRM功能的电子书阅读器