I was just thinking about how amazing rainbows are and how lucky we are that we can see them. But I was also wondering if other animals or hypothetical aliens that can see different spectra of light can also see something in the sky or is it just coincidentally just visible light?
In: Biology
This is such an interesting question and topic. Yes, the rainbow that we know goes on well before and well after what we can see. There are many animals that can not only see different parts of the spectrum than we can see, but they even see colors that are sort of in-between the colors we see. Look up the mantis shrimp if you want to get your mind blown.
Another cool thing is that our Sun puts out the majority of its light in the form of electromagnetic waves that coincide with the wavelengths that our eyes can see. Our eyes evolved to make the best use of the available light. There is more to the rainbow than what we can see, but we see most of what is available and useful.
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