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Pioneer program: Pioneer 10 sends back the first close-up images of Jupiter.
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Pioneer program
Series of United States uncrewed lunar and planetary space probes (1958-60; 1965-92)
The Pioneer programs were two series of United States lunar and planetary space probes. The first program, which ran from 1958 to 1960, unsuccessfully attempted to send spacecraft to orbit the Moon, successfully sent one spacecraft to fly by the Moon, and successfully sent one…Source: Wikipedia (CC BY-SA)
Pioneer 10
First spacecraft to visit Jupiter and the outer Solar System (1972–2003)
Pioneer 10 is a NASA space probe launched in 1972 that completed the first mission to the planet Jupiter. Pioneer 10 became the first of five artificial objects to achieve the escape velocity needed to leave the Solar System. This space exploration project was conducted by the…Source: Wikipedia (CC BY-SA)
Jupiter
Fifth planet from the Sun
Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass more than 2.5 times that of all the other planets in the Solar System combined and slightly less than one-thousandth the mass of the Sun. Its diameter is 11 times that of…Source: Wikipedia (CC BY-SA)