they were probably made by storms
None. Saturn has a great white spot, Uranus has a dark spot. However, Neptune has a great dark spot [see related link for a picture] which has been compared to Jupiters great red spot, but it is not red.
The Great Dark spot on Neptune is a huge storm with tempestuous winds of 500 MILES PER HOUR
it is thougt to be a hole in the methane cloud
It is the Great Red Spot. The Great Dark Spot was a storm on Neptune while Pluto has an elgonated orbit.
Great red spot is a storm in jupiter.it so big that it can contain two or three earth sized planet Great dark spot is a storm in neptune with a very fast wind
No, it is a storm, similar to the Great Red Spot on Jupiter.
In 1989, Voyager 2 flew by Neptune and photographed a Great Dark Spot about the size of Earth. Like the Great Red Spot on Jupiter, the Great Dark Spot was probably a giant storm. But the storm didn't last long. Images taken fice years later showed that the Great Dark Spot was gone.
Neptune. It's Great dark spot resembles that of Jupiter's Great Red Spot.
Neptune itself is cold the dark spot is like the red spot on Jupiter is a storm
No. Neptune is a gas giant, it has no solid surface. Therefore no volcanoes can form on the planet. The Great Dark Spot is an anticyclonic storm, just like the Great Red Spot on Jupiter. Unlike Jupiter's Great Red Spot which has lasted for hundreds (possibly thousands) of years, the Great Dark Spots of Neptune last only a handful of years before vanishing. See the related link below.
Neptune's atmosphere has zones like Jupiter, and the dark spot aka the "Great Dark Spot" is about the size of the Earth. It's caused by a storm much like Jupiter's Great Red Spot only much smaller. The lighter colored clouds of methane crystals in the upper atmosphere is simply being blown away by this storm to reveal the darker layer of gases underneath.
Yes, it has a name. It is called "The Great Red Spot".