On June 13, 1983, which NASA spacecraft became the first human-made object to travel beyond the outer planets of our solar system?
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Answer: Pioneer 10
Launched in 1972, Pioneer 10 crossed the orbit of Neptune on this date, placing it farther from the Sun than any planet, making it the first spacecraft to venture beyond the solar system's known planetary boundary. It had already made history in 1973 as the first probe to fly through the asteroid belt and past Jupiter.