Hover over Saturn's north pole and you would expect a swirling circular hurricane. Instead, you find a flawless six-sided polygon, a geometric shape that seems to defy everything we know about how turbulent gas behaves.

This episode dives into the physics, history, and unsolved mystery of Saturn's hexagon, drawing on atmospheric research, planetary data, and fluid dynamic models. We unpack its staggering scale, its eerie synchronicity with the planet's deep interior, and the competing theories scientists still fiercely debate.

• Each side of the hexagon is roughly 14,500 kilometers long, about 2,000 kilometers longer than Earth's entire diameter
• The storm rotates in perfect lockstep with Saturn's internal radio emissions, suggesting the deep core puppeteers the outer atmosphere
• How it was hiding in 1981 Voyager images and only assembled into a hexagon in 1987, then changed from blue to gold during the Cassini mission
• The Oxford lab experiment that produced hexagons by spinning fluid at different speeds, and why critics say it relies on vortex streets we don't observe
• Why deep barotropic instability, with the central polar vortex acting as a gyroscopic stabilizer, is the leading explanation