The scientific history behind the discovery of the planet Neptune.

Prepared by NASA, this site provides a detailed look at the planet Neptune. The menu tabs are divided into overview, moons, rings, photo gallery, and facts and figures. Just click to access specific information on any of these topics.

NASA offers a photo gallery of Neptune images. Each image includes a detailed caption describing what the image is of, and the captions are also available in streaming audio.

Wikipedia, a publicly-maintained encyclopedia, provides information on the planet Neptune, including physical characteristics, exploration, moons, and more. Additional links provided.

Resource provides a deeper look at the planet Neptune. Just click on the frequently asked question link and dive into knowledge.

Collection of images, with vocalized explanatory captions, of the planets acquired by NASA as part of its exploratory space programs.

Get to know the twin of Neptune with this introduction to Uranus. Listen to the information in an audio file. Features include a printable version of the page, and vocabulary words are linked to a glossary of terms.

Resource has text information to compare Neptune with Earth. Includes Neptune observational data, orbital data, magnetosphere, and atmosphere. Also contains an image of Neptune that can be enlarged.

An excellent report on the planet Uranus. The site includes detailed information about the planet as well as links to information about Uranus moons, unmanned probes sent to explore Uranus, and an extensive set of images of the planet.

Only one spacecraft has visited the most distant gas planet, Neptune. This resource provides information about the findings of the Voyager 2 spacecraft's mission to Neptune.

This site from Hubblesite provides information on the Hubble Telescope. NASA's Hubble Space Telescope has been used to assemble a time-lapse color movie showing a full 16-hour rotation of the distant planet, Neptune.

An introduction to Neptune for young students. Audio content, a glossary, graphics, and a printable version are all included.

A slideshow and a short multiple-choice quiz on the four outer planets of our solar system, which include Jupiter, Saturn, Uranus, and Neptune.

Here is a clear, simple picture of the solar system. Click on the names of the planets to learn more about each. Clicking on underlined terms takes you to more and more detailed scientific information.

This stunning site on the solar system gives a great overview of the planets and our sun. Learn about each object's size, vital statistics, and moons. Then go on for a more in depth look at these objects in the column on the left.

A plethora of information about Asteroids. This site provides lots of in-text links to information, pictures of asteroids, a table full of information about asteroids, as well as links to more information about asteroids.

NASA offers a photo gallery of Neptune images. Each image includes a detailed caption describing what the image is of, and the captions are also available in streaming audio.

NASA offers a photo gallery of Neptune images. Each image includes a detailed caption describing what the image is of, and the captions are also available in streaming audio.

NASA offers a photo gallery of Neptune images. Each image includes a detailed caption describing what the image is of, and the captions are also available in streaming audio.

Resource provides a brief answer to this question.

A data table of nearly everything known about the ring system of Neptune. The resource also includes an image of the rings of Neptune that can be enlarged.

This complete resource will help students to improve their understand of space exploration. Includes images of the universe, galaxies, stars and planets.

A virtual journey through space offers photos and facts about Earth and its neighboring planets, comets, other celestial bodies of the Solar System, and the Milky Way and Andromeda galaxies.

An image of the planet Neptune.