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Loading contentThe careful containment, quarantine, and curation of returned samples in specialised facilities — keeping them pristine for science while keeping Earth safe, and preserving them for study by instruments not yet invented.
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.