Reasons to Believe

Baryon Density

TNRTB Archive - Retained for reference information

New nuclear physics laboratory measurements and calculations verify exquisite design in the cosmic baryon density and affirm the big bang anew. Physicists measured and calculated the value for the density of baryons (protons and neutrons) in the universe at 4.5 percent of the total cosmic density. These results were consistent with two previous observations. This additional confirmation helps increase confidence in the big bang creation event, in big bang cosmic history, and in the conclusion that the universe indeed is extremely fine-tuned to make life’s existence possible.


Alain Coc et al., “Updated Big Bang Nucleosynthesis Compared with Wilkinson Microwave Anisotropy Probe Ov=bservations and the Abundance of Light Elements,” Astrophysical Journal, 600 (2004), pp. 544-552.


RTB article: Facts for Faith articles on the anthropic principle

RTB video: Journey Toward Creation, second edition

RTB book: The Creator and the Cosmos, third edition

Subjects: Big Bang

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.