Great Red Spot
The Great Red Spot is a hurricane on the surface of the planet Jupiter. It is so big that two or three Earths could fit inside it. It has been going on for at least 340 years.[1]
Formation
Scientists do not know why or how it formed, some researchers think because of the chemicals like ammonia in the upper part of the Great Red Spot. Scientists also notice that the spot is getting smaller which they also do not understand.
Other websites
References
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Great Red Spot Media
Close up view of the Great Red Spot by Juno
Donato Creti's 1711 painting "Jupiter", the first depiction of a large spot on Jupiter as red
A sketch of Jupiter made by Thomas Gwyn Elger in November 1881, showing the Great Red Spot
A sequence of images of Jupiter showing the shrinking and rounding of the GRS, between 2021 and 2025. Captured with an 8" untracked Dobsonian telescope.
Time-lapse sequence from the approach of Voyager 1 to Jupiter in 1979, showing the motion of atmospheric bands, and the circulation of the Great Red Spot. The momentary black spots are shadows cast by Jupiter's moons.
Size of the Earth compared to the Great Red Spot
Clockwise from top left: Hubble image of visible spectrum; infrared from the Gemini Observatory;*multiwavelength composite of Hubble and Gemini data showing visible light in blue and thermal infrared in red; ultraviolet image from Hubble; visible light detail
Winds in the Great Red Spot as analyzed from Hubble's data. In the false-color image at right, red indicates faster wind, blue indicates slower.
Space com Staff (2006-11-17). "Jupiter Data Sheet". Space. Retrieved 2025-06-22.
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