TNRTB Archive – Retained for reference information
· Studies of star-formation histories reveal more evidence for design in the galaxy where Earth resides. Two constraints on the star-formation rate of a galaxy affect where a long-surviving habitable planet can reside. First, the star must form at a steady enough rate to support the spiral arms, or else the galaxy will not have low-density regions where a planetary system is not disrupted by interactions with other stars. This rate must also proceed rapidly enough that sufficient heavy elements are produced to be incorporated into the system. Second, if the environment is not dense enough, star formation produces insufficient heavy elements. Recent studies indicate that galaxies in dense environments underwent early rapid star formation that slowed around 5 billion years ago. The density around the Milky Way Galaxy, where the solar system resides, is just right to meet both requirements of star formation. The results comport well with the notion of a divine Designer preparing a habitat where life can thrive for billions of years.
- Ravi K. Sheth et al., “Environment and the Cosmic Evolution of Star Formation,” Astrophysical Journal Letters 650 (2006): L25-L28.
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