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Topic: Earth in the Universe

Why does the Moon's appearance from Earth change over time? What is a solar eclipse, and where and when can you see one? What have robotic rovers discovered on Mars? How big is our universe, and how has it changed over time? What discoveries led scientists to the theory of the Big Bang? Does water exist on other planets in our solar system? Explore these questions and more in this collection of Earth in the Universe resources.

Resource Highlight

Pulsars: Little Green Men

Pulsars: Little Green Men

Type: HTML Document

The story behind Jocelyn Bell's role in the discovery of pulsars is told in this colorful, comic-book-style resource from A Science Odyssey Web site.