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Galileo's telescope
Galileo did not actually event the telescope, only improved upon it. Although, he was using the improved telescope to greatly add to the world's knowledge of our Solar System. -
Sputnik
Launched in Earths low orbit by the Soviet Union. It was the first satelite and the first thing that left Earth. -
Explorer
First American earth orbiter, It discovered the Van Allen radiation belts. -
Luna
Luna was the first Lunar flyby launched by the Soviet Union. -
Vostok
This was the first manned Earth orbiter launched b none other than the Soviet Union. -
Mariner 4
First Mars flyby -
Lunar 10
First lunar orbiter -
Venera 4
First Venus atmospheric probe -
Apollo 11
First man on the moon, launched and succeeded by the United States. -
Venera 7
first landing on Venus, attempted by the Soviet Union. -
Luna 16
First robotic lunar sample return -
Luna 17/Lunokhod 1
First lunar rover -
Salyut
Salyut was the first space station made by the Soviet Union. -
Mars 3
Mars orbiter, First Mars lander (lost contact after 14.5s) and First Mars atmospheric probe -
Pioneer 10
First Jupiter flyby -
Pioneer 11
Jupiter flyby and First Saturn flyby. -
Mariner 10
Venus flyby and First Mercury flyby -
Venera 9
First Venus orbiter and lander; First images from surface of Venus -
Viking
Mars orbiter and lander; First lander returning data and First pictures from Martian surface. -
Helios-B
Solar observations, Closest solar approach (0.29 AU) -
Voyager 2
Jupiter/Saturn/first Uranus/first Neptune flyby -
Voyager 1
Jupiter/Saturn flyby, Furthest human-made object. -
ISEE-3
Solar wind investigations; later redesignated International Cometary Explorer and performed Comet Giacobini-Zinner and Comet Halley flybys – First comet flyby -
Hubble space telesccope
It was a space telescope that was put in space by a space shuttle. -
Space X
an American space transport company headquartered in Hawthorne, California.
