Astronomy for Kids

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Showing Tag: "the solar system" (Show all posts)

To be a Planet, or Not to be a Planet?

Posted by Warren Wong on Thursday, November 11, 2010, In : Pluto 
 
Count the planets in the solar system and make an assessment of their various sizes and distances from Sol and the Earth as you leave on your journey to the beginning of the universe. You'll find that the line between planet and smaller planetoids, like asteroids and meteorites, has yet to be firmly set in place in the astronomy books, and in the universe.
 
We were all taught during our school indoctrination of nine planets circling Sol at varying distances. Mercury and Venus lie clos...

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The Moving Universe

Posted by Warren Wong on Wednesday, November 10, 2010, In : the moving universe 
The Earth is moving relative to everything else in the universe

Everything on your journey to the beginning of the universe is moving relative to everything else in the universe

The Earth rotates on its axis
Staring upward at the night sky above you at first get the notion you're stationary in the universe, but nothing could be further from the truth. The Earth beneath you is spinning on its axis at 1000 km/hr, orbiting Sol at 100,000 km/hr, the Milky Way Galaxy at 800,000 km/h...


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Warren Wong
Prince George, British Columbia

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