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Loading contentThe fundamental constituents of matter and force in the Standard Model — the quarks and leptons that make up matter, and the force-carrying bosons. Everything from a star to a galaxy is built from a handful of these particles, and understanding them connects the physics of the very small to the structure of the whole Universe.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
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