Tag Archives: Earth

Earth as a Greenhouse

My plan for Thursdays’ climate science posts is to prove a negative: that global warming can’t not be happening. Here’s the thing, though. I don’t understand the science behind it well enough to start proving negatives yet. That’s why I’m going … Continue reading

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The Ecliptic

The ecliptic, as astronomers call it, is the apparent path of the sun against the background of the stars in the sky. It’s useful because it tells us how to find the planets in the sky. They can be hard to … Continue reading

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The Celestial Sphere

The celestial sphere is certainly a strange way to think about the night sky. It makes sense to use globes to diagram the Earth. The Earth, after all, is a roughly spherical planet, and flat paper maps have a way … Continue reading

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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, if anyone so much as mentions that the Earth is … Continue reading

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