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First rocket
Robert Goddard's liquid-fueled rocket rose 12m into the air -
First u.s satellite
In the the same year NASA was founded, Exporler 1 was launched. It orbited Earth 58,000 times before burning up in Earth's atmosphere in 1970. -
Mainer 2
Traveled to Venus and collected data for 3 months. The craft now orbits the sun.