Space Exploration What have we discovered?. Sputnik 1: Earth’s First Artificial Satellite Launched in 1957 Launched in 1957 Began the “space age” Began.
Astronauts and Space Exploration. What is an Astronaut? Astronaut means “sailor among the stars” Russian term cosmonaut means “sailor of the universe”
Topic 2.0 – Technological Developments for Space Exploration
