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Loading contentThe steps that turn calibrated, stacked exposures into a finished image — stretching the very high dynamic range so faint nebulosity and bright cores both show, balancing colour, reducing noise, and sharpening detail. Done honestly it reveals what the data contain; the goal is to represent real signal, not to invent it.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.