IN 1957 THE U.S.S.R LAUNCHES SPUTNIK 1, THE FIRST ARTIFICIAL SATELITE TO ORBIT THE WORLD.

SOVIET COSMONAUT YURI GAGARIN BECOMES THE FIRST HUMAN IN SPACE.

ABOARD THE FRIENDSHIP 7, JOHN GLENN IS THE FIRST AMERICAN TO ORBIT THE EARTH

NASA'S MARINER 4 CONDUCTS THE FIRST MARS FLYBY

NEIL ARMSTRONG BECOMES THE FIRST HUMAN TO WALK ON THE MOON.

RUSSIA'S SALYUT 1-THE WORLDS FIRST SPACE STATION-IS LAUNCHED FROM AN UNMANNED ROCKET

THE HUBBLE SPACE TELESCOPE IS DEPLOYED IN EARTH ORBIT BY SPACE SHUTTLE DISCOVERY