-
First man-made satellite, orbits the Earth.
-
-
Yuri Gagarin becomes first man in space. He orbited the Earth and came home safely.
-
Alan B. Shepard became the first U.S. citizen in space.
-
Mercury astronaut John Glenn became the fist U.S. citizen to orbit the Earth.
-
Explored Venus' atmospere
-
The final stage of the U.S. program to reach the Moon.
-
Neil Armstrong was the first human to step foot on the Moon. Edwin Aldrin is with Armstrong and is the second man on the Moon.
-
Sent back pictures of Jupier-first probe to encounter an outer planet.
-
Orbiter mapped the surface of Mars; searched for life on Mars.
-
Reaches Jupiter in 1995, launched in 1989.
-
Mapped Venus' surface and returned data on the composition of Venus' atmosphere.