Pioneer 4

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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What Wikipedia says

Pioneer 4 is an American spin-stabilized uncrewed spacecraft that was launched as part of the Pioneer program on a lunar flyby trajectory and into a heliocentric orbit, making it the first probe of the United States to escape from the Earth's gravity.

Excerpt from the Wikipedia article “Pioneer 4”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NASA, Public domain, via Wikimedia Commons.