Top twenty-five questions (all questions)

What's going to happen on December 21st 2012? (viewed 2049446 times)
What color is each planet? (viewed 720583 times)
Is the Moon moving away from the Earth? When was this discovered? (viewed 444925 times)
At what speed does the earth move around the sun? (viewed 408138 times)
How far is each planet from Earth? (viewed 398033 times)
How many stars are there in our Galaxy (Milky Way)? (viewed 346234 times)
What is the universe expanding into? (viewed 309275 times)
Why do the planets orbit the sun? (viewed 289344 times)
Which planets have rings? (viewed 284358 times)
How long does it take for the Sun's light to reach us? (viewed 279728 times)
How do you measure the distance between Earth and the Sun? (viewed 279090 times)
When will Halley's Comet return? (viewed 274389 times)
How do I build a model rocket? (viewed 252272 times)
What color is Venus? (viewed 244097 times)
Why do stars twinkle? (viewed 240666 times)
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (viewed 240625 times)
What is a white hole? (viewed 239328 times)
What is the life cycle of a star? (viewed 231824 times)
What is the largest star? (viewed 213966 times)
What are the names of the earth, moon, sun, and solar system? (viewed 194469 times)
What makes the Earth rotate? (viewed 177589 times)
What are shooting stars? (viewed 175492 times)
What do astronauts eat in space? Can they grow food? (viewed 172538 times)
Why do planets rotate? (viewed 166253 times)
What is that ring (or rainbow) around the moon? (viewed 161033 times)

URL: http://curious.astro.cornell.edu/topquestions.php
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Last modified: May 19, 2011 10:27:41 PM

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