They take them with cameras sensitive to those wavelengths. I wish we could see in those wavelengths. Our night sky would be a regular light show.
You and me both. I would love to be able to see the entire spectrum. But the theory is that we wouldn’t be able to process the information.
Best would be the ability to slide one’s vision up and down the scale, and to look at two or more different wavelengths at will. That would make life so much more interesting.