21st Century Junior Library Yvonne Brill and Satellite Propulsion By Ellen Labrecque
The National Aeronautics and Space Administration NASA has been working on space exploration since 1958
A Woman We live in the space age Spaceships rocket around the earth Spaceships have landed on the Moon One day people could even take a spaceship to the planet Mars Yvonne Brill was a rocket scientist who helped make space travel happen She invented ways to send and keep rockets in space
