Cosmic Exploration · discovery

Flat Galaxy Rotation Curves

1978 · Vera Rubin

Year
1978

Description

Stars at the edges of spiral galaxies orbit as fast as those near the centre, which Newtonian gravity forbids unless most of the mass is invisible. This is what turned dark matter from a curiosity into a crisis.

Discoverer

Referenced by

researcher

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