But even more surprising is what the Kepler database highlights about our own solar system: namely, that we’re a bunch of celestial oddballs.

NASA's Juno probe has flown closer to Jupiter and its largest moon, Ganymede , than any other spacecraft in more than two decades.

Saturn's seven icy rings each spin at their own speed, behaving like a "mini solar system." Planetary scientist James O'Donoghue made a beautifully simple animation to show how it works.