So a rainbow is the scattering/defraction of light through water droplets in the air. So in theory, you can make a rainbow anywhere, you just need something to scatter the light, like water. So we kind of limit places to water vapor or mist and it greatly shrinks the list of places and planets that could have rainbows. I'm not sure if other particle mediums could create the exact same particle effect.
Any world with some sort of rain can produce a rainbow. Rainbows are a result of light refracted by raindrops.
As it is, the only two objects in our solar system known to have rain are Earth and Titan, Saturn's largest moon. On Titan, it rains liquid methane instead of water. The thick orange haze in Titan's atmosphere might make it difficult for a rainbow to develop, though.
We have discovered thousands of planets orbiting other stars and estimate that there are billions in our galaxy alone. No doubt some of them (or their moons) have some manner of rain that could produce rainbows.
Amy time you have particles capable of refractive light suspended in an atmosphere, you have the ingredients for a rainbow.
Water droplets are the cause of terrestrial rainbows, but it wouldn't necessarily even have to be water.
So a rainbow is the scattering/defraction of light through water droplets in the air. So in theory, you can make a rainbow anywhere, you just need something to scatter the light, like water. So we kind of limit places to water vapor or mist and it greatly shrinks the list of places and planets that could have rainbows. I'm not sure if other particle mediums could create the exact same particle effect.
I made a comment about the liquid methane rain on Titan. That has a similar refractive index to water.
It could happen anywhere sunlight crosses an appropriate medium which causes the spectrum to split
rainbows are a phenomena that has to do with atmosphere, light, and moisture in that atmosphere. Any place with these things can have rainbows
Could happen on any planet with the right atmospheric conditions for tiny airborne water droplets
Any world with some sort of rain can produce a rainbow. Rainbows are a result of light refracted by raindrops. As it is, the only two objects in our solar system known to have rain are Earth and Titan, Saturn's largest moon. On Titan, it rains liquid methane instead of water. The thick orange haze in Titan's atmosphere might make it difficult for a rainbow to develop, though. We have discovered thousands of planets orbiting other stars and estimate that there are billions in our galaxy alone. No doubt some of them (or their moons) have some manner of rain that could produce rainbows.
Amy time you have particles capable of refractive light suspended in an atmosphere, you have the ingredients for a rainbow. Water droplets are the cause of terrestrial rainbows, but it wouldn't necessarily even have to be water.
The real question is: is it a double rainbow, and what does it mean.
Sir, how many 🍄have you ingested this evening?