Such as photos of nebulas or galaxies. I remember something about using filters of different gases but that’s it.
In: Technology
In a few different ways, depending on the purpose.
1. they are digital colored to make them striking and beautiful. to varying degrees this _may_ be done consistent to number 2, below.
2. different data is color coded. For example, many “telescopes” aren’t looking at visual spectrum at all, so to make it useful to our eyes data is color coded. this is a sort of “translation”.
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