Fly to Mars!: Forces in Space

Why do astronauts feel heavy after take—off? Why are rockets long and thin? How do spacecraft orbit Earth? Covering lots of different aspects of space exploration, including looking at how spacecraft such as rocket launchers, satellites and space stations work and more human questions such as why astronauts need to keep so physically fit and what kit they need in their spacesuits, Fly to Mars! takes a fun look at forces in space. While learning about forces you will find that you also find ...