Jupiter’s Great Red Spot explained

Jupiter’s Great Red Spot explained

Vertical gas flow may be key to massive storm’s longevity

By Gabriel Popkin, 14:39 PM November 27, 2013

Gases flowing vertically from the top and bottom of Jupiter’s Great Red Spot keep the huge storm swirling, according to a new mathematical simulation. No previous work has explained how the cyclone has survived for the nearly two centuries that astronomers have observed it.

The Great Red Spot is a giant vortex: a mass of swiftly rotating gas. Nearly twice the diameter of Earth, the spot has been roiling since at least 1831, when it was first described. Early telescope observations in the 1660s...

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