196

Cool, sure, but how many of these are actual color? I'm guessing 2 but it probably depends on definition (does contrast adjustment count if hue is retained?)

Edit - Alt text found in original post:

A pride flag with every color band represented by a NASA image. White is Earth clouds, pink is aurora, blue is the Sun in a specific wavelength, brown is Jupiter clouds, black is the Hubble deep field, red is the top of sprites[1], orange is a Mars crater, yellow is the surface of Io, green is a lake with algae, blue is Neptune, and purple is the Crab Nebula in a specific wavelength.

[1] https://en.wikipedia.org/wiki/Sprite_(lightning)#/media/File:Upperatmoslight1.jpg

Surprisingly many: white, pink, red, orange, green (probably) and yellow. (The well-known Neptune image is false color; Hubble deep-field is IR but that is redshifted so IDK, may be "real" color too.) Too bad white, pink and red are Earth's atmospheric phenomena, of which only the aurora is really space-related, and green is just a satellite photo. Still, within NASA's scope I guess, and better than "artist's impressions", which is all we have for non-solar-system bodies' surfaces; or pictures of NASA-made objects.