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Galileo's Telescope
Galileo discovered Jupiter’s moons. -
Sputnik 1
The first Earth orbiter. (Soviet Union) -
Explorer 1
First American orbiter. -
Mariner 2
First secessful Venus flyby -
Mariner 4
First Mars flyby. -
Surveyor 1
First luner lander. -
Apollo 8
First manned lunar orbiter. -
Apollo 11
First man on the moon, and first successful sample return. -
Apollo 15
First manned lunar rover. -
Pioneer 10
First Jupiter flyby. -
Mariner 10
First Mercury flyby -
Viking 1
Brought back the first pictures of Mars. -
Galileo (Spacecraft)
The first Jupiter orbiting probe -
Hubble Space Telescope
It is an orbital space telescope. -
Mars Observer
A Mars orbiter. (Lost contact) -
NEAR Shoemaker
First near Earth asteriod flyby, asteriod orbit, and landing. -
Mars Pathfinder
First planetary rover. -
Cassini–Huygens
First saturn orbiter and first outer planet lander. -
International Space Station
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Stardust
Brought back the first comet coma sample. -
Genesis
First solar wind samples. -
MESSENGER
First Mercury orbiter. -
New Horizons
First Pluto, Charon, and Kuiper Belt flyby. -
Juno
Jupiter orbiter -
Mars Science Laboratory
A large Mars rover.