First satellite launched on earth
First dog in space.
Chimp sent to space
Allen Shepard was the first american in space.
First space walk
Take pictures of mars
First men to walk on the moon
First space craft to make it to jupiter
Took pictures of Mercury and Venus.
Going to explore Uranus and Neptune.
First satellite to fly by Jupiter and Saturn.
Upgraded multiple times
Be the first space craft in Saturn's orbit
International Space Lab
Sent a probe to Pluto.
Find more earth-like planets
Water on mars
Have the first american in space for one year