Reasons to Believe

Galactic Environments Affect Star Formation Rate

TNRTB Archive - Retained for reference information

A team of South American scientists discovered more evidence of fine-tuning in galaxy development and star formation. The star formation history of a galaxy determines how quickly a star capable of forming a solar system like Earth’s can arise. Using two large surveys of galaxies (SDSS and 2dFGRS), the team analyzed over 1000 pairs of galaxies and found a strong dependence of the galaxies’ star formation history on the galaxies’ orbital parameters and global environment. Also, the team observed that galaxy mergers produce effective star formation only in low- to moderate-density galaxies—like the Milky Way Galaxy. Adequate star formation is required to support the stellar low-density regions in spiral galaxies where stable, life-supporting solar systems can avoid gravitational disruptions from passing stars. Such fine-tuning comports well with the notion of a supercaring Designer quickly preparing a suitable life-supporting planet where humans thrive.

o   M. Sol Alonso et al., “Effects of Galaxy Interactions in Different Environments,” Monthly Notices of the Royal Astronomical Society 367 (2006): 1029-38.


·         Related Resource

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

·         Product Spotlight

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

Subjects: Galaxy 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.