Nobody did. Neptune's existence was predicted in the early 1800s and was discovered in 1846 by Johann Gottfried Galle. In 1989 Neptune was visited by the Voyager 2 space probe.
neptune's rings were discovered by Voyager 2 spacecraft in 1989
The 'great dark spot' on Neptune - was discovered by the Voyager II spacecraft in 1989.
It is top classified information that only the government and the NASA association can now about it
No. Voyager 2 visited Neptune in 1989. Neptune was discovered in 1846 but its existence was inferred earlier based on how its gravity slightly perturbed the orbit of Uranus.
Neptune was discovered by the New Berlin Observatory telescope in 1846.The Voyager 2 space probe also did a fly-by of Neptune in 1989.
Complete rings around Neptune were discovered in 1989 by the Voyager 2 spacecraft during its flyby of the planet. The rings are comprised of four main rings and were the first to be discovered around Neptune.
Voyager 2 discovered new moons and rings around Neptune in 1989, including seven new moons and four partial rings. These discoveries expanded our understanding of Neptune's satellite system and its surrounding ring structure.
Neptune was never discovered as a star.
Neptune was discovered before Pluto.
Despina is one of Neptune's moons, and it was discovered by the Voyager 2 spacecraft when it passed by Neptune in 1989. However, the moon itself is believed to have formed billions of years ago, alongside Neptune and the rest of the solar system.
Being the 8th planet and 4th largest planet in our solar system, Neptune was named after the Roman god of the sea/ocean. Neptune was discovered on September 23,1826 and was visited by Voyager 2 in 1989. Neptune has 8 know moons.
In what year was the moon called Proteus discovered? real answer is..... Answer: Discovered by Voyager 2 spacecraft in 1989, it is named after Proteus, the shape-changing sea god of Greek mythology. Proteus circles Neptune in a nearly equatorial orbit at the distance of about 4.75 equatorial radii of the planet.