#2993: Ingredients explain

[A planet is shown with several different features like oceans and large lakes as well as and craters. It seems like the continent is fused together from five different segments, with cracks between where there is either ocean or rivers. There are four labels above the planet with lines going down to different areas of the planet, but not necessarily pointing to any particular part on the surface, but rather to the entire planet:]

Sulfur chemistry from Io

Cool oceans from Europa

Hydrocarbons from Titan

Ganymede and Callisto (filler)

[Caption beneath the panel:]

Scientists now think the five biggest outer solar system moons are actually just ingredients; we’re supposed to combine them to create a single Mars-sized planet that’s cooler than any of them.