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Loading contentStandard, shared datasets on which different methods are compared on equal footing — like the Galaxy Zoo morphology labels or the PLAsTiCC transient-classification challenge. They let the field measure real progress rather than incomparable claims.
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.