The colors are interpretation. A galaxy presented in Brazil's yellow and green honors Pele, but its appearance also challenges the familiar assumption that an astronomical photograph records exactly what human eyes would see. Behind the tribute lies a distinction that matters: the light a telescope measures and the colors an image displays need not be identical.
Assigned color earns trust. When astronomers translate measurements into an image, they can map separate wavelength bands onto visible hues, allowing differences in the recorded radiation to become differences a reader can recognize. Human vision covers only a narrow portion of the electromagnetic spectrum; infrared radiation and X-rays fall outside it. Instruments can detect those signals, although displaying them requires choices about color and brightness. Not every colorful galaxy image includes invisible radiation, however, and a palette alone cannot identify the observing instrument, the wavelengths recorded, or the physical processes responsible for the light.
Beauty needs a caption. To judge such an image, the useful questions concern which filters supplied the measurements, how their signals were combined, and whether the displayed colors represent visible light or radiation beyond human vision. Those details distinguish a commemorative palette from a scientific claim about a galaxy's appearance. Wavelength mapping can help separate structures that would otherwise overlap, while brightness adjustments can expose faint emission beside brighter features. Neither technique excuses an unexplained presentation; both can make observations easier to inspect. Against the darkness, Brazil's colors belong to an act of remembrance; the galaxy's light belongs to a much larger vocabulary.
