Reasons to Believe

Extrasolar Planet Systems Affirm Solar System Design

TNRTB Archive - Retained for reference information

Studies of extrasolar planet systems provide additional evidence for fine-tuning in Earth’s planet system. By studying interactions of known and hypothetical bodies in extrasolar planet systems, two U.S. astronomers were able to derive limits on the existence of habitable planets in these systems. The interactions of bodies in the systems cause planetary orbits to become more eccentric (less circular). For hot Jupiter-like planets, the absence of observed eccentricity implies the lack of other planets in the system. Additionally, given the large number of planets in the Earth-Sun system, the low eccentricities of all major planets argues that the system is fine-tuned to ensure Earth remains at a relatively constant distance from the Sun. RTB’s cosmic creation model predicts such fine-tuning as the work of a supernatural Creator preparing a suitable habitat for advanced (particularly human) life.

o       Fred C. Adams and Gregory Laughlin, “Effects of Secular Interactions in Extrasolar Planetary Systems,” Astrophysical Journal 649 (2006): 992-1003.


·        Related Resource

o       Fine-Tuning for Life On Earth (June 2004)

·        Product Spotlight

o       The Creator and the Cosmos, 3rd ed., by Hugh Ross

Subjects: Extrasolar Planets, Solar System Design

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.