<P> In the wake of the discovery, there was much nationalistic rivalry between the French and the British over who deserved credit for the discovery . Eventually, an international consensus emerged that both Le Verrier and Adams jointly deserved credit . Since 1966, Dennis Rawlins has questioned the credibility of Adams's claim to co-discovery, and the issue was re-evaluated by historians with the return in 1998 of the "Neptune papers" (historical documents) to the Royal Observatory, Greenwich . After reviewing the documents, they suggest that "Adams does not deserve equal credit with Le Verrier for the discovery of Neptune . That credit belongs only to the person who succeeded both in predicting the planet's place and in convincing astronomers to search for it ." </P> <P> Shortly after its discovery, Neptune was referred to simply as "the planet exterior to Uranus" or as "Le Verrier's planet". The first suggestion for a name came from Galle, who proposed the name Janus . In England, Challis put forward the name Oceanus . </P> <P> Claiming the right to name his discovery, Le Verrier quickly proposed the name Neptune for this new planet, though falsely stating that this had been officially approved by the French Bureau des Longitudes . In October, he sought to name the planet Le Verrier, after himself, and he had loyal support in this from the observatory director, François Arago . This suggestion met with stiff resistance outside France . French almanacs quickly reintroduced the name Herschel for Uranus, after that planet's discoverer Sir William Herschel, and Leverrier for the new planet . </P> <P> Struve came out in favour of the name Neptune on 29 December 1846, to the Saint Petersburg Academy of Sciences . Soon, Neptune became the internationally accepted name . In Roman mythology, Neptune was the god of the sea, identified with the Greek Poseidon . The demand for a mythological name seemed to be in keeping with the nomenclature of the other planets, all of which, except for Earth, were named for deities in Greek and Roman mythology . </P>

Water in any form solid gas or liquid on neptune