Interactive
American Museum of Natural History

Planetary Mysteries

6th - 12th
A website all about planetary mysteries—it's a one-stop-shop for all things, stars, planets, and space travel. Scholars read an astronomy overview to discover the page's big ideas, then choose from the plethora of resources, including...
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American Museum of Natural History

Journey to the Stars

6th - 12th
Fifteen detailed pictures and informative captions delve deep into the exploration of stars—their life cycle and importance in the universe. 
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Other

The Royal Observatory at Greenwich: Homepage

9th - 10th
This site from The Royal Observatory at Greenwich is a very historically important astronomical observatory. The site has a combination of information about astronomy, longitude and time. Information written in highly accessible...