The Juno spacecraft will arrive in Jupiter’s orbit on July 4th to give us our closest-ever views of the most extreme planet in the solar system. Juno will peer below the clouds to try to find out what Jupiter’s made of, what kind of core it has, and how it formed, snapping some hopefully amazing photos along the way.
Scroll over the images below to learn more about some of the spacecraft’s most important parts.
Photo credit: Lockheed Martin
Note: not all of the science instruments on the Juno craft are shown in the image above. You can read more about them here.
And here’s what’s inside that big square box:
Photo credit: Lockheed Martin
Popular Science will be at NASA JPL when Juno arrives at Jupiter on July 4. Follow our coverage here.