On today’s podcast were going to finish talking about the anthropic principle and the fine-tuning of the universe. We’re going to be looking at several more challenges that a random universe would have to overcome in order for life to exist. Specifically were going to be looking at the fine-tuning of our galaxy and solar system.
The Anthropic Principle and our Galaxy
- Our Galaxies shape: In order for life to have a chance, the shape of the galaxy should be a spiral. Elliptical and irregular galaxies create a more hostile environment for the survival of life forms.
- The Size of the Galaxy: A galaxy only a little larger than ours would emit too much radiation for life to exist. This same galaxy would also have too many gravitational problems to overcome. If a galaxy was only slightly smaller, the amount of heavier elements necessary for life, like iron and carbon would be greatly reduced. A smaller galaxy would make a stable orbit for a life supporting planet very improbable.
The Anthropic Principle and our solar system
- The Suns Mass: If our suns mass was increased only a little, the sun would burn out too quickly. If our suns mass was decreased, we would have increased solar flares which would alter the rotation of the earth.
- The distance between the earth and the sun: If the distance between earth and the sun were increased our water would freeze. If this distance was decreased, the water on earth would evaporate away, leaving the planet without water.
- The Moon and earth: If the gravitational effects of the moon on earth were increased our ocean currents would disrupt the rotation speed of our planet making our planet a hostile environment for life. If the gravitational effects of the moon were decreased, our orbit would also be affected causing major climate complications on our planet.
- Tectonic activity: If earth’s tectonic activity was reduced many of the nutrients that make life possible would be washed deep into the crust of the planet and would be trapped. If the tectonic activity was increased we would have too much carbon dioxide present in our atmosphere causing a runaway greenhouse effect.
- The Ozone layer: If earth’s ozone layer were larger, plants wouldn’t get the sunlight they need to grow. If the ozone layer was decreased earth would get too much uv radiation for plant growth.
As we bring this series to a close, it’s easy to see that there are just too many factors that must be in place for any life to exist anywhere in the universe. This is why many scientists conclude that there must have been an intelligent designer.
If you would like more information about the anthropic principle and our fine-tuned universe, check out the following web sites.
Here’s the entire mp3 podcast series on the Anthropic Principle, ready for download.
Here’s the entire mp3 podcast series on an introduction to the evolution and creationism, ready for download.
Here’s the entire mp3 podcast series on the age of the earth, ready for download.
Or check out the Youth Apologetics Training Podcast Archive.