The planet so light it could float on a cosmic ocean

Space · Published 26 October 2026 Swipe more like this →

In short: Explore the history and physics of Saturn, the solar system's most elegant giant. This video details how a world of such massive scale possesses a density low enough to float on water.

Saturn is the sixth planet from the Sun and is defined by its extreme physical contrasts. While it rotates rapidly—completing a full turn in just over 10 hours—its orbital journey around the Sun is much slower, taking nearly 30 Earth years to finish one trip.

The planet is famous for its majestic rings, which span hundreds of thousands of miles but remain only a few yards thick. Beyond its rings, Saturn's atmosphere hides hexagonal storms that challenge current understandings of physics.

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