Jupiter’s Great Red Spot isn’t as permanent as we thought
Live MintJupiter’s Great Red Spot—a rotating storm that is so large it could swallow Earth—isn’t what it used to be. Today’s spot is trapped at its current mid-latitude locale between two windy jet streams to the north and south, which flow parallel to Jupiter’s equator in opposite directions. Previously, researchers hypothesized that smaller storms merged to form the Great Red Spot, but, based on simulations of disturbances in the wind currents and behavior, Sánchez‐Lavega’s group concluded that the spot formed because of disturbances between these two jet streams. Observations of the spot by the Earth-orbiting Hubble Space Telescope between December 2023 and March 2024 found that, over a 90-day timeline, the storm can look like a skinnier or fatter oval, according to Amy Simon, a senior planetary scientist at NASA’s Goddard Space Flight Center and lead author of the study.
History of this topic
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