Sources: Stewart, P. (2018, June 8). Jupiter. flickr. https://www.flickr.com/photos/106648653@N05/42658035711
Definition:
A persistent large anticyclonic storm in the atmosphere of Jupiter, 22° south from its equator, which has been continuously observed since the 19th century.
As of 2021, the Great Red Spot is reported to be about 10,000 miles across and 300 miles deep into the atmosphere of Jupiter. However, according to NASA observations, it is shrinking and becoming taller, and it is not yet clear whether the Great Red Spot will stabilize or disappear completely.