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sovites launch sputnnik 1 in to space
sputnik was the frist artifiacl satellites in space -
sputnik 2
it caried a dog in to space named laika -
Explorer 1
frist us satellite -
Explorer 2
explorer 2 is launched but fails to reach orbit -
The vanguard 1
it functions for 3 years -
Pioneer 1
is launched 70,700 miles in to the air -
luna 1
frist man made thing to orbit the sun -
frist man in space
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around the earth
orbits the earth 3 times -
venus
mariner flies past venus
