The reason why the Great Dark Spot has disappeared is unknown.

It is about one-third the diameter of the Great Dark Spot.

Neptune also had its own lesser known Great Dark Spot.

This one of the Great Dark Spot, yes.

Instead, a new storm similar to the Great Dark Spot was found in the planet's northern hemisphere.

A feature in the atmosphere of Neptune was also called the Great Dark Spot.

The Scooter is another storm, a white cloud group farther south than the Great Dark Spot.

Also known as the Wizard's Eye, it is about one third the diameter of the Great Dark Spot.

The Great Dark Spot is thought to be a hole in the methane cloud deck of Neptune.

She'd seen several portraits of him displayed in a section where half a dozen other paintings around them had been removed, leaving great dark spots on the wall.

Several discoveries were made, including the discovery of the Great Dark Spot and Triton's geysers.

However, images taken by the Hubble Space Telescope revealed that the Great Dark Spot had disappeared.

It was not about Neptune's Great Dark Spot or the surprising pink and blue colors of the moon Triton.

The Wizard's Eye (sometimes called Great Dark Spot 2) is another cyclone on Neptune.

On Neptune, thin wispy clouds which could possibly be cirrus have been detected over the Great Dark Spot.

Some five years later, on 2 November 1994, the Hubble Space Telescope did not see the Great Dark Spot on the planet.

The Great Dark Spot was an anticyclone (possibly an atmospheric hole, similar to the ozone hole) discovered by Voyager 2 in 1989.

The Great Dark Spot generated large white clouds at or just below the tropopause layer similar to high-altitude cirrus clouds found on Earth.

A Great Dark Spot was found, curiously at almost the same latitude as the Great Red Spot on Jupiter.

Its nickname is due to the fact that when first detected in the months before the 1989 Voyager 2 encounter it moved faster than the Great Dark Spot.

The probe also discovered the Great Dark Spot, although it has now disappeared after when the Hubble Space Telescope took pictures of Neptune in 1994.

This new spot, called the Northern Great Dark Spot (NGDS), has remained able to be seen for several years.

It is the case of other storms that include Anne's Spot on Saturn, and the Great Dark Spot on Neptune.

Voyager 2 discovered an anticyclone called the Great Dark Spot, similar to Jupiter's Great Red Spot.

While in the neighborhood of Neptune, Voyager 2 discovered the "Great Dark Spot", which has since disappeared, according to observations by the Hubble Space Telescope.