If Jupiter has the Great Red Spot, which planet has the Great Dark Spot?
Great Dark Spot or possibly through some other unknown mechanisms. However, in 2016 an almost identical spot emerged in Neptune's northern hemisphere. This new spot, called the Northern Great Dark Spot (NGDS), has remained visible for several years. It is unknown whether this spot is still present on the planet, as observations using the Hubble telescope are limited. Great Dark Spot The Great Dark Spot (also known as GDS-89, for Great Dark Spot - 1989) was one of a series of dark spots on Neptune similar in appearance to Jupiter's Great Red Spot. GDS-89 was the first Great Dark Spot on Neptune to
Great Red Spot Great Red Spot The Great Red Spot is a persistent high-pressure region in the atmosphere of Jupiter, producing an anticyclonic storm 22° south of the planet's equator. It has been continuously observed since 1830. Earlier observations from 1665 to 1713 are believed to be of the same storm; if this is correct, it has existed for at least ((2019 - 1665)/10 round 0) * 10 years. Such storms are not uncommon within the turbulent atmospheres of gas giants. The Great Red Spot may have existed since before 1665, but the present spot was first seen only after 1830 and well-studied