The Cassini Division

1675 · Giovanni Cassini

Year: 1675

Description

A dark gap splitting Saturn's rings in two — the first hint that the rings are not solid but swarms of particles, shepherded by resonances with the moons.

Discoverer

Giovanni Cassini

Observatory

Paris Observatory

Referenced by

observatory

Paris Observatory

researcher

Giovanni Cassini

Open on the Cosmic Exploration shelf — the interactive card, the filters, and everything alongside it.

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.