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.
A notable recent find was discovering seasons on the moon, using the European Southern Observatory's Very Large Telescope in Chile. Discovery and flyby. Triton was found on Oct. 10, 1846, just 17 days after Neptune was discovered. According to NASA, Triton was known simply as  the satellite of Neptune  until 1949, when a second moon (Nereid) was found.