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nice site to learn more about the sun, earth, etc.

"The Cassini spacecraft has captured a fresh view of Saturn from high above the planet's gorgeous rings and also provided a stunning video of its travels through the ring plane. The robotic probe has climbed to higher and higher inclinations over the past several months, providing looks at the planet and rings that scientists have eagerly awaited."

"Explore the wealth of information available here to learn about the Earth and Space sciences and related topics in the humanities including mythology, art, poetry, and more."

lots of great information

"View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons. "