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Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.

Neptune's Web

These are links to other great web sites about Neptune. But beware: you don't want to get caught in Neptune's Web! Don't stay away from Windows to the Universe for long! Click for full size

NASA's Neptune Page

Neptune A simple page with images and animations.

Neptune's Ring System Everything you always wanted to know about Neptune's Rings.

Nine Planets: Neptune

NSSDC Neptune Photo Gallery

StarDate Online: Neptune

Voyager Home Page

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Science, Evolution, and Creationism

How did life evolve on Earth? The answer to this question can help us understand our past and prepare for our future. Although evolution provides credible and reliable answers, polls show that many people turn away from science, seeking other explanations with which they are more comfortable....more

Neptune's Moons and Rings

Neptune has // Call the moon count function defined in the document head print_moon_count('neptune'); moons. It also has rings, but its rings are different from Saturn's. Neptune's largest moon is named...more

A Look at the Inside of Neptune

The Giant planets do not have the same kind of layers inside that the Earth-like planets do. The history of the giant planets was so different that they formed with much more gas and ice on the inside....more

The Poles of Neptune and Its Moons

The South Pole of the planet Neptune is a bit strange. Triton, Neptune's largest moon, also has interesting poles. Neptune is tilted on its axis by about 28. That isn't so strange... Earth is tilted,...more

A Look at what Neptune's Atmosphere is Made of

The atmosphere of Neptune is a lot like that of Uranus, and unlike that of Saturn and Jupiter. On Jupiter and Saturn, the atmosphere is mostly made of the simple molecules hydrogen and helium. The atmosphere...more

The Origin of an Atmosphere

There are four ideas for where the atmosphere comes from: 1. that the planet-elements which made the planets made the atmosphere too, 2. that the atmosphere was drawn to the planet from the cloud out of...more

Neptune's Great Dark Spot of 1989

The Great Dark Spot of Neptune is thought to be a hole in the methane clouds of Neptune. The white clouds shown in the picture are above the "hole". In many images of Neptune, the Great Dark Spot can be...more

Evolution of Neptune's atmosphere, page 5

On this scale you can see that the "rocky" materials such as Calcium, Magnesium, Iron, Nickel, and Lead, that the terrestrial planets are made of can condense out of a very hot nebula, but ice will not...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA