Theories · theory

Dark Matter

Accepted · 1933

Status
Accepted
Year
1933

Summary

Galaxies and clusters move as though they hold five times the mass we can see. Zwicky found it and was ignored; Rubin's rotation curves made it undeniable. Its identity remains completely unknown.

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From the Theories database in Notion, last edited 2026-08-15. This page is the row, rendered by the build; nothing on it is written by hand.