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Jupiter's Great Red Spot Is Shapeshifting in Ways 'Never Identified Before'

An anonymous reader writes: A massive storm has been raging on Jupiter for centuries, and, for the most part, has appeared very serious. A new series of detailed images, however, revealed that the famous red cyclone can get a little squiggly, bulging into different shapes and sizes over a short period of time.

Astronomers used the Hubble space telescope to look at Jupiter's Great Red Spot (GRS) from December 2023 to March 2024, and they observed the massive storm changing dimensions over the 90-day period. The reason behind this unexpected shapeshifting is unknown, but it revealed that the famous red storm is not as stable as it seemed. The results of the Hubble observations are detailed in a study published Wednesday in The Planetary Science Journal.

Using Hubble's observations, the team of astronomers behind the new study measured the Great Red Spot's size, shape, brightness, color, and vorticity over one full oscillation cycle. The combined images act like a time-lapse of the storm's changing behavior, revealing its famous red eye varying in size, while its core gets brighter when the Great Red Spot is at its largest during the 90-day cycle.
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