Some planets have oceans of molten rock. Turns out, if the orbit is just slightly oval, the insides melt, and giant waves roam the lava. They collide, creating unpredictable heat spots. Such a planet flickers like an unsteady flame and can be liquid all the way through.
🎯 The temperature of these lava oceans is higher than in a smelting furnace: around 3000°C.
🎬 Lava worlds like Mustafar from Star Wars turn out even more turbulent than in fiction, thanks to tides.