 
 <translate> Quoc: 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. Originally thought to be a large cloud itself, the "Great Dark Spot" was later hypothesized to be a hole in the visible cloud deck of Neptune.

Answer this question based on the passage: what did the voyager 2 discover about neptune?
HW Chung: OK, some thoughts: <hau> Quoc: Yayin da yake cikin unguwar Neptune, Voyager 2 ya gano "Babban Dark Spot", wanda ya ɓace tun daga lokacin, bisa ga lura da Hubble Space Telescope. Da farko an yi tunanin cewa babban girgije ne da kansa, "Babban Dark Spot" daga baya aka yi tunanin cewa rami ne a cikin girgije mai gani na Neptune.  Amsa wannan tambaya bisa ga nassi: menene Voyager 2 ya gano game da Neptune? HW Chung: OK, wasu tunani: 