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Todd McCall

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February 16, 2009

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About Canyons on Mars
The latest information on what made the canyons on Mars, the Grand Canyon compared to the Mars canyon Valles Marineris and the uncertain relationship between the canyons of Mars and the presence of water on the red planet.

Published on June 30, 2011 to Space
Explaining, What is a Galaxy
Since the Andromeda galaxy was proven to be a separate galactic system in 1922, we have discovered that the Universe is likely to contain some 170 billion galaxies. Here's some basic information on what a galaxy is and how they are formed.

Published on October 23, 2010 to Space
Dark Matter & Dark Energy, Are They the Same?
Dark matter and dark energy comprise 96% of our universe. Let's take a look at how these ingredients differ from one another and their effect upon the visible universe.

Published on October 13, 2010 to Space