Such as photos of nebulas or galaxies. I remember something about using filters of different gases but that’s it.
In: Technology
No they are all artist digitally retouched. There might be vibrant colors of the different gases in space but we cannot see them with the tools that we currently have. But we know that different gases when ignited burn different colors so we can theorize what some nebulas might look like because we can spectral analysis their elements to know what they’re made of and how hot they are. But all the colorful photos of space are digitally edited for color vibrance. [I like this article about it.](https://www.space.com/8059-truth-photos-hubble-space-telescope-sees.html)
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