also, due to sunspot activity, the dark ages was actually darker and fewer crops grew.

The storm for its duration showed to be stable in latitude. In 1994, a Northern Dark Spot (NGDS-1994) formed in the northern hemisphere and disappeared between 19. Hubble is able to view images at blue wavelength which is the only way the features are visible. Beginning in 1994, the Hubble became the only operating facility to detect the presence and observe dark spots on Neptune and is still used in the present day. Dark Spot 2 fully dissipated prior to the year 1994.

In 1989, when the Voyager 2 observed the Great Dark Spot (GDS), a second dark spot, Dark Spot 2 (DS2) was found. Other dark spots observedįollowing the Great Dark Spot, several other dark spots have been observed. Dark spots may dissipate when they migrate too close to the equator, or possibly through some other unknown mechanisms. The persistence of companion clouds shows that some former dark spots may continue to exist as cyclones even though they are no longer visible as a dark feature. When the spot was to be photographed again in November 1994 by the Hubble Space Telescope, it had disappeared completely, leaving astronomers to believe that it has either been covered up or had vanished. Dark spot on Neptune full color (left) and blue light (right) in a 2016 photo.

Also, due to sunspot activity, the dark ages was actually darker and fewer crops grew.