Mankind has been studying Jupiter for more than 400 years. But we've only been sending spacecraft there since the 1970s! Nine spacecraft have visited Jupiter since 1973, and they've discovered a lot about the planet. Flip through the slideshow below to find out about these spacecraft and what they've discovered.

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Drawing by Galileo Galilei of Jupiter from "The Starry Messenger"

Pioneer 10 photo of Jupiter

Pioneer 11 photo of Jupiter's north pole

Animated video showing Voyager 1's approach to Jupiter

Artist's illustration of Ulysses at the sun

Series of photos from Galileo showing comet Shoemaker-Levy 9 colliding with Jupiter

Portrait of Jupiter, Io, Europa, Ganymede and Callisto made with photos from Galileo

Cassini image of Jupiter

New Horizons false color image of Jupiter and Io

Hubble Space Telescope photo of a scar on Jupiter caused by a comet impact

Animation of Jupiter images from HubbleYoutube video

Illustration of Juno at Jupiter

Graphic illustrating the history of exploration at Jupiter