If you've opened a fortune cookie, you've probably read an aphorism, like this one, 'The world may be your oyster, but that doesn't mean you'll get its pearl.' In just a few words this quote tells the reader a lesson about life, that you have nearly limitless possibilities, but not all of them lead to a great reward.
The exploration of Neptune has only begun with one spacecraft, Voyager 2 in 1989. Currently there are no approved future missions to visit the Neptunian system. NASA, ESA and also independent academic groups have proposed future scientific missions to visit Neptune.
Neptune. Neptune is the 8th planet in our Solar System and the furthest from the Sun, being some 2,798,310,157 miles from the Sun. This was the first planet to be found using mathematics rather than observation techniques. Neptune is the fourth-largest planet by diameter and the third-largest by mass.Neptune as with Uranus is an Gas Giant and also an Ice Giant, and has 12 known moons orbiting it, and the planet orbits the Sun every 165 Earth years and has been named after the Roman god of the sea.eptune is the fourth-largest planet by diameter and the third-largest by mass. Neptune as with Uranus is an Gas Giant and also an Ice Giant, and has 12 known moons orbiting it, and the planet orbits the Sun every 165 Earth years and has been named after the Roman god of the sea.