Wie sehen wir Farben im Raum?

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yeah photos like these are edited to look more colorful. its really just as colorless as you see when you look up

Depends on how the photo is taken and what wave lengths it is taken at. Basically every picture from Webb is completely different from what you would see given it is infrared light. Same with Chandra and X-rays. Lots of photos are also taken with specific filters (Hydrogen, oxygen, and sulfur.) Those photos are assigned specific colors per filter when they are combined.

So in reality most space photos are not true color, because they are not collecting data the way our eyes do. Some photos are true color, and some editing is done to create true color images. The best idea you can get about true color is looking at the Orion Nebula with a telescope or binoculars, but even then your eyes are dark adapted and the color receptors are muted in the dark.

TLDR: Most photos aren’t true color, but we can see colors. Most objects are just too dim to see the colors with your eyes very well.

You’ve provided an enhanced photo of some kind, of a star-forming region (similar to the Orion Nebula). In true visible-light color (what our eyes would perceive if sensitive enough), nebulae are much more subtle — often pale, washed-out pastels or even mostly grayish with faint hints of red/green.

Space is mostly black, and almost a perfect vacuum. Still, many nebulae do emit real visible colors (especially red from hydrogen, green from oxygen) that fall within the spectrum visible to humans (and perhaps other beings!) Still, they would be fainter than in your image.

Real color space images looks very boring. The colors are exaggerated or straight up „faked“.

Like there might be 600nm and 610nm photons in that image, which would look almost the same to a human eye. But you adjust the image so that one of those is red and the other blue, to make a nicer picture.

Or, maybe you take a visible light picture and an infrared picture, and then color the first one red and the second blue and layer them.

There is nothing „real“ about the way the human visual system perceives colour. In general digital image sensors don’t capture light in the same way, and the images need to be post-processed to imitate what a human eye would have seen – for example, this is how the camera in your phone works.

With astrophotography this requirement is often relaxed. Images can be produced by capturing only specific wavelengths of light, or with detectors sensitive to light completely outside the visible spectrum. We have to make some arbitrary mapping from that data to an image that we can see, to make a so-called false colour* image. The colours do not (and are not intended to) match human vision, but they still faithfully represent the spectral information that the detector captured.

*I don’t like this term, because the corrollary that human vision is „true colour“ is, again, not correct!

Be cool if someone did a series of side-by-sides showing visible light true colour images next to the more commonly displayed images of the same objects using colour filters to represent different materials or wavelengths.

The Hubble telescope took pictures in visible light.

The colors are real, but they’re extremely faint. The human eye is better at discerning brightness than color, so if you look at these nebulae with the naked eye, they just look like fuzzy grey blotches, but if you take a long exposure photograph you get images like the one you posted.

The color comes from the gasses in the nebulae. Atoms energized by radiation from nearby stars emit light at specific frequencies based on the composition of the gas. Hydrogen and helium are very abundant, which is why a lot of nebulae have these lovely mixes of blues, purples and pinks, with areas of yellow. The color of the gas is based on its composition.

There ARE lots of astronomy photos that use false color to represent frequencies that the human eye can’t pick up, but most photographs like this are true color.

So basically what we know of what space looks like isn’t what space looks like.

R/G/B. We have telescopes that take photos in red, green and blue and then we combine the photos to get the correct color. Our eyes do the exact same thing in red green and blue and automatically process everything for us. Same thing in your computers etc. I’m sure someone else could elaborate more.