Reasons to Believe

Fine-tuning in Planet Formation

TNRTB Archive - Retained for reference information

As planetary scientists study planet-formation processes, their research shows the difficulties in forming planetary systems with life-supporting planets like Earth. As a gas cloud collapses to form a star and potentially a planetary system, a disk of gas and planetesimals (the "building blocks" of planets) forms around the star. For a gas giant to form, its core must grow faster than the timescale by which it will migrate into the star—around 10,000-100,000 years. This occurs only if the planetesimals are small enough. However, these same planetesimals are the components needed to form a rocky terrestrial planet like Earth. If these planetesimals are too small, the terrestrial planets don’t form before the disk is cleared out of the stellar system. Such fine-tuning comports well with RTB’s cosmic creation model, in which a supernatural Creator intervenes to ensure a habitable system containing both Earth and life-protecting gas-giant planets. 

o       J. E. Chambers, “Planet Formation with Migration,” Astrophysical Journal Letters 652 (2006): L133-L136.


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o       Hugh Ross, “The Faint Sun Paradox”

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o       Journey Toward Creation, 2nd ed., with Hugh Ross

Subjects: Extrasolar Planets

Dr. Hugh Ross

Reasons to Believe emerged from my passion to research, develop, and proclaim the most powerful new reasons to believe in Christ as Creator, Lord, and Savior and to use those new reasons to reach people for Christ. Read more about Dr. Hugh Ross.