The Voyager 1 probe, launched in 1977, is the human-made object farthest from Earth.
Why it is true
In 2012 it left the bubble of solar wind surrounding the planets and entered interstellar space. It is more than 24 billion kilometres away, and the signals it sends, travelling at the speed of light, take almost a whole day to reach us.
Source: NASA Jet Propulsion Laboratory
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