1-154-854 - NASA/Oxford Science Archive/Heritage Images

The planet Jupiter, 1979. Taken from Voyager 1 at 20 million kilometres this pictures shows the Great Red Spot, a storm that has been raging for hundreds of years, and two of Jupiter's moons - Io over the Red Spot and Europa. Two Voyager spacecraft were launched in 1977 to explore the planets in the outer solar system. Voyager 1 flew past Jupiter at 278,000 kilometres in March 1979 before flying on to Saturn.