Voyager 2 preceded it into space by 16 days, but Voyager 1 quickly overtook it on a faster trajectory, and arrived at Jupiter 4 months before its sister craft. Voyager 1 took this photo of Jupiter ...

Voyager 1 visited Jupiter and Saturn and then kept on going and going. In 2012, it left our cosmic neighborhood and entered the space between stars. It was the first human-made object to leave our ...

But the moon’s wild volcanic activity wasn’t detected until Voyager 1 flew by Jupiter and its moons in 1979, revealing Io’s dynamic surface that resembled a pepperoni pizza, Bolton said.

The original mission was meant to last four years as the probe visited Jupiter and Saturn. It’s now spent 46 years in space, making Voyager 1 and its twin Voyager 2 the longest-operating ...