Sunday, June 7, 2009

6 Answers to Common Questions about Earth that YOU get wrong!

Moon Venus (3)

Planetary Astronomer Mike answers some common questions about Earth. These really are common questions that are frequently answered incorrectly.

Why does Earth experience seasons? - hint: it's not Earth's distance from the Sun.

Why is there a 24 hour day-night cycle? - duh

Why is the sky blue? - reflection? wrong; refraction? ...sort of but not quite

Why are sunsets red? - see answer to why is the sky blue.

How does Earth compare to other planets in our solar system? - again, duh.

Why does a feather fall slower than a bowling ball? - hint: physics
Go here for the answers to these questions.


  1. Another one: What causes the phases of the Moon? It never ceases to amaze me how many people think the phases of the moon are caused by the earth's shadow falling on the moon.

  2. @Jeffrey: LOL. Yep. I've heard that one too.


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