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.

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.

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

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.

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.

A NASA scientist, Dr. Sten Odenwald, answers many students' questions. Topics include planets, galaxies, black holes, the origin of the universe, and common misconceptions about space.

See what you know about the solar system by taking this brief interactive quiz and learning module.

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.

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.

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.

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.

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.

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 is a list of links to online resources related to the study of the planets. It has a literary theme associated with the Lewis Carrol poem "The Hunting of the Snark" with many quotes from literature and science. Navigation tools...

This web page contains information and images on the pretesting, space simulation, and launch of Voyager I and Voyager II.

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.

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

This resource provides a general overview of all the planets in the solar system, as well as the sun, various comets and asteroids, the deep space network, and the latest solar system news.

Solar system surface map database. Includes maps of all solid planets and many moons. Maps of gas planets are either based on images taken by Voyager, or are fictitious maps including general storm systems.

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