Download or read book Breakthroughs in Space Travel written by Wil Mara and published by Lerner Publications ™. This book was released on 2019-02-01 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover exciting changes in space travel. Learn how reusable rockets roar into space and then land gracefully on Earth. Find out how humans stay in space longer than ever and monitor the effects of weightlessness on their bodies. See how people around the world are planning for humanity's greatest mission yet: Mars. Fascinating photos and STEM Focus sidebars flesh out this cutting-edge science adventure.