"The remote Neptune is almost certainly as much the twin of Uranus in its general features as Saturn is of Jupiter."

"Neptune is dark, cold and whipped by supersonic winds. Neptune is the last of the hydrogen and helium gas giants in o…"

"Things to know about Neptune are: If the Sun were as tall as a typical front door, the Earth would be the size of a n…"

"Neptune was discovered by Urbain Le Verrier, John Couch Adams, and Johann Galle on 23 September 1846. It orbits aroun…"

"The most common distinction made between the planets is “inner planets” versus outer “planets”. The term inner planet…"

"The word planet comes from the Greek for “wanderer,” because the planets' positions change relative to those of the s…"

"Although Uranus and Neptune are superficially twin planets, they are different enough to remind us - as do Venus and …"

"Sir,—The Planet [Neptune] whose position you marked out actually exists. On the day on which your letter reached me, …"

"It is notorious that the same discovery is frequently made simultaneously and quite independently, by different perso…"

"We see it [the as-yet unseen, probable new planet, Neptune] as Columbus saw America from the coast of Spain. Its move…"