The two Voyager spacecraft launched in 1977 to take advantage of the rare cosmic event that the giant planetary objects aligned together, which last occurred during the Napoleonic reign of France. Voyager outdid its objectives and is currently moving out of the heliosphere and entering interstellar space, which is the only man-made object that has traveled so far.
This video explained how primitive computers and outdated technologies managed such a massive feat.
https://voyager.jpl.nasa.gov/mission/status/ Voyager probes' current mission status.
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