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Sputnik 1
Destination: Earth
Data Obtained: first man made atificle satilite to orbit space -
Period: to
Space race
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Yuri A. Gagarin
Destination: Earth
Data Obtained: first man to orbit earth -
Shepad, Allen B.
Destination: Space
Data Obtained: first U.S. citizen in space -
Mariner 2
Destination: Venus
Data Obtained: Verified high tempatures in Venus's atmosphere -
Pioneer 10
Destination: Jupiter
Data Obtained: Sent back photos of Jupiter; first probe to encounter an outer planet -
Mariner 10
Destination: Mercury
Data Obtained: first good images of the surface of Mercury -
Viking 1
Destination: Mars
Data Obtained: orbiter mapped the surface of Mars: lander searched for life on mars -
Magellan
Destination: Venus
Data Obtained: mapped the surface of
Venus and returned data on the compisition of Venus's atmosphere