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Stories, updates, insights, and original analysis from The Planetary Society.

Prometheus Invading F Ring

Canto III: Hints of Equinox

Saturn is rapidly approaching equinox, where the Sun passes through the ring plane (south-to-north, i.e. the northern vernal equinox), and its ring system (i.e. its great now-gloomy poorly-lit circles of large blocks of water ice) is starting to show some really interesting behavior.

Cassini Mission Overview

Connections

David Seal muses on his time as the mission planner for Cassini, and the history behind its name, and astronomy in Rome.