Neptune is called an “ice giant” because it’s mostly made of a thick, slushy mix of water, methane, and ammonia, which ...

Neptune, one of the farthest planets from the sun, has the longest orbit, with one year lasting 165 Earth years.

However, at Neptune’s surface, the gravity is only about 1.1 times the gravity we experience on Earth. In other words, if ...

Neptune is like a celestial paint swatch: a stunning royal blue that demands attention.

Fascinating NASA facts about NeptuneNeptune takes 165 Earth years to orbit the Sun. A day on Neptune lasts 16 hours.

The solar wind pushes some of the gas and dust away from the comet, forming those beautiful tails we see. A comet actually ...

2 Neptune is invisable to the naked eye Credit: Hulton Archive - Getty How many moons does Neptune have? Scientists have so far discovered 14 moons orbiting Neptune.

The winning ticket for the largest Mega Millions jackpot in history was sold at a Neptune Beach Publix. Here are five cool facts about the town.

The gas giant planet Neptune in our solar system has 14 known moons, including the strange backwards-orbiting Triton. See what we know about Neptune's moons.

Explore our 25 weird solar system facts and see how our neighborhood is stranger than we could ever imagine.