Exploring The Solar System

Exploring The Solar System — page 1
Chapter 1 SPACE EXPLORATION have gazed at the night sky for thousands of years Ancient peoples used the positions of the stars and People People planets in the sky to tell the passing of time Ancient Greeks grouped the stars into constellations In 1610 Galileo Galilei constructed a telescope to see far into the night sky With his telescope Galileo discovered more about the universe than anyone had before Space exploration has come a long way since Galileo’s discoveries Many spacecraft have been launched into the solar system to photograph and gather information People have even walked on the Moon All of the stars that can be seen in the night sky are part of the Milky Way 4