Astronomy
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The Celestial Sphere
When you look up at the night sky on a clear, dark night, it seems as if the stars are glittering like bright thumbtacks on a great canvas above you. (You can get a similar effect — with less light…
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Mapping the Sky
I need you guys to help me with something. Can you find a horse in this image of the night sky? Yeah, me neither. I’m lost. I see the Great Square of Pegasus because I know what to look for,…
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Where Are We?
In the 4th century B. C. E. (Before Common Era), scientists believed the Earth was the center of the universe. Before that, they were convinced the Earth was flat. Now, most of us know that the Earth is not the…
