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Sputnik 1
First artificial satellite launched in space -
Period: to
Space Race
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Alan B. Shepard
First U.S. citizen in space -
first human in space
Yuri A. Gagarin, soviet cosmonaut, first human in space -
Mariner 2
Verifie high tempuratures in Venus's atmosphere -
Project Mercury
First step in U.S. sending a man to the moon -
John Glenn
First U.S. citizen to orbit Earth -
Project Gemini
Second step in U.S. to reach the moon -
Surveyor
Survayed the surface of the moon -
Project Apollo
Final step in U.S. bringing man to moon -
Pioneer 10
sent back photos of Jupiter-first probe to encounter an outer planet -
Voyager
Another space probe that reaches the outer edges of the solar system -
Viking 1
Orbiter mapped the surface of Mars; lander searched for life on Mars -
Venera
Soviet probe to study the surface of Venus -
Magellan
Mapped Venus's surface and returned data on the composition of Venus's atmosphere -
Voyager 2
It studied the outer planets -
Galileo
sent back pictures of Europa and Io, two of Jupiters 61 moons