Intelligent Design

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Seriously?  We're going with "highly unlikely".

Do you want to supply a link to these mathematical models?

Planetary systems around stars seem to be the rule, not the exception as was thought in some circles until not too long ago.

So far we have discovered around 1300 planets outside our solar system.

Seems those mathematical models are incorrect.

Who cares if we found planets outside the solar system. It is fine tuning of the universe, not fine tuning of the solar system. 
You should read the book The Privelaged Planet, or watch the documentary, which describes how rare the conditions that permit life. Obviously rare and highly unlikely arguments aren't always good, but it's still interesting.

Here's a couple articles about the cosmological constant.

1. [Susskind2005] Leonard Susskind, The Cosmic Landscape: String Theory and the Illusion of Intelligent Design, Little, Brown and Company, New York, 2005.
   
   
2. http://www.sciencemeetsreligion.org/physics/cosmo-constant.php