Improbable Planet by Hugh Ross: a Review


Hugh Ross is an astrophysicist with a PhD from the University of Toronto. He is also the founder and president of Reasons to Believe, a science/faith think tank. In the ongoing conversation between people of faith and those who are not over the philosophy of science, the phrase “god-of-the-gaps” is often tossed around as an accusation against those who hold to some view of divine design or creation. It is claimed that the view is “we don’t know how this came about, so God must have done it.” This dismissal ignores the fact that design proponents who are theists (and not all are) have many lines of argumentation that show the rationality of belief in God. When apparent design is cited as evidence of God’s existence, it is not for the purpose of filling a gap in knowledge, but inferring from what is known. Ross does this very well in his books Creator and the Cosmos, Origins of Life (with Fazale Rana) and Why the Universe Is the Way It Is. In each of these books, Ross addresses how the initial conditions of the universe, the fine tuning of the solar system, and the origin of life are quite consistent with intentional purpose. In Improbable Planet, Ross brings these arguments together to show the whole picture. This is his best work yet.

Using the analogy of a huge construction project, Ross catalogs the steps that must be followed, from producing the materials, to preparing the ground, to laying the foundation, etc, to argue that the universe bears the hallmarks of design for advanced, high-tech civilization.



The thesis of the book is that the universe as a whole, and earth in particular, was created for the purpose of redemption: a home for the human race which God would use to defeat evil once and for all. The book is laid out in eighteen chapters. Chapter one lays out point of raising this question. Chapter two describes the results of what the next thirteen chapters would describe. In chapter three, Ross describes how the Big Bang, and subsequent star formation and supernovae produced the necessary building materials. Chapter four shows how rare of a neighborhood a rare planet needs. (Location, location, location.) Chapter five describes the early development of the solar system and the earth-moon system, as well as how these particular conditions make earth a suitable home. Chapter six explains how the interaction of solar system bodies brought about bombardments of the earth that was vital for the life that would later occupy it.

Scientists are frequently announcing the discovery of extrasolar planets. Those who think life must exist elsewhere are looking for planets that could have liquid water on them. They recognize that this is a necessary, though not sufficient condition for life. In chapter seven, Ross notes eight “habitable zones” that must overlap for advanced life to be possible, as well as other conditions. Chapter eight discusses the early origin of life and how it lead to the development of land masses. Here begins the series of life forms that would appear in just the right kinds, and amounts that would prepare the planet for future life forms. Chapter nine through twelve examine how these life forms affected and were affected by the climate, and how they compensated for a changing luminosity of the sun. Chapter thirteen catalogs how the geological and biological history of earth bestowed abundant resources which would be needed for a high-tech civilization. Chapter fourteen walks us through the history of mass speciation and extinction events in earth’s history. Chapter fifteen explains how the ice age cycle has prepared the earth to be able to sustain a population of billions. Chapter sixteen brings us back to the big picture, the why question, and offers an explanation from the Christian worldview.



As I stated above, I think this is Ross’ best work yet. It lays out his best arguments for design in the universe, the galaxy, the solar system, and the planet. His big picture-to-close up approach, using the construction analogy, is a comprehensive summary of why so many who study these things find confidence in their faith. This book also avoids a lot of unnecessary theological speculation. It can be a little technical for the average lay person, but I think it is worth the effort. I cannot recommend this book more enthusiastically. What readers who may be skeptical need to keep in mind, is that this is a “top down” approach to the question of design. If your starting point is that matter is all there is, you will come away unconvinced. I invite you to read this with an open mind.


Finding Truth: The Study Guide Chapter 1 Question 1 Part 2

Origin of life:

Having begun to exist, and having the constants mentioned in the book and elsewhere, that means life’s origin and development are inevitable, right? Not so fast. Pearcey points out the necessity for massive amounts of information found in DNA for even the simplest life forms. Moreover, in every other experience we have had, information comes from an intelligent source.

This is a huge problem for a naturalistic explanation for the origin of life, but there are other nearly insurmountable hurdles that prebiotic chemistry must overcome before you even get to the level of DNA.

Many genes code for the production of proteins. In living systems, these proteins are formed from 20 amino acids. Amino acids form in three-dimensional shapes that form right-and left-handed structures. Those that form in living systems are left-handed (and the sugars that bind with them are right-handed.) When these same amino acids form in nature outside of living systems, or are produced in the lab, they form in equal mixtures of left- and right-handed forms. This is called a racemic mixture. In the presence of a racemic mixture, proteins cannot form. This is not merely a case that we do not know how amino acids could form proteins for the first life. It is a case where natural chemical processes prevent such proteins from forming. As Fazale Rana writes, “…without preexisting reservoirs of exclusively left-handed amino acids and exclusively right-handed sugars, the naturalistic assembly of proteins, DNA and RNA is prohibited.”[1]

Some astrobiologists (the only field of science completely devoid of data) have suggested that life could be based on some other element than carbon, such as silicon. However, as Rana points out,

Silicon belongs to the same chemical group as carbon and should display similar chemical properties, prompting some astrobiologists to propose that life could be based on this element. But while silicon does form rings and chains, these structures lack the stability and the range of complexity found in carbon-based compounds. Silicon-silicon bonds are much weaker than the corresponding carbon-carbon bonds, and unlike carbon-carbon bonds, they are susceptible to oxidation.[2]

This leaves carbon as likely the only element from which biochemistry can arise. It also explains why the search for habitable planets begins with planets that could possibly sustain liquid water, since carbon is most reactive in the same range of temperatures in which water is liquid.

Some have accused theists of appealing to “god-of-the-gaps,” saying we are invoking God to explain what we do not understand. This is not the case. We have numerous reasons to think God exists and that he has revealed himself. Part of that revelation is that he created the universe and life. Natural obstacles to undirected processes and information that requires an intelligent source are evidence that this is so.

[1] Fazale Rana, Creating Life in the Lab: How New Discoveries in Synthetic Biology Make a Case for the Creator (Grand Rapids, Mich.: Baker Books, 2011), 34-45.


Was early Earth’s atmosphere suitable for creating the building blocks of life?


Do the Miller-Urey experiments simulate the early Earth? The Miller-Urey experiments

Biochemist Dr. Fazale Rana of Reasons to Believe offers some evidence.


Today, the Miller-Urey experiment is considered to be irrelevant to the origin-of-life question. Current understanding of the composition of early Earth’s atmosphere differs significantly from the gas mix used by Miller. Most planetary scientists now think that the Earth’s primeval atmosphere consisted of carbon dioxide, nitrogen, and water vapor. Laboratory experiments indicate that this gas mixture is incapable of yielding organic materials in Miller-Urey-type experiments.

In May 2003 origin-of-life researchers Jeffrey Bada and Antonio Lazcano, long-time associates of Miller, wrote an essay for Science (May 2, 2003, pp. 745-746)commemorating the 50-year anniversary of the publication of Miller’s initial results.They pointed out that the Miller-Urey experiment has historical significance, but not scientific importance in contemporary origin-of-life thought. Bada and Lazcano wrote:

Is the “prebiotic soup” theory a reasonable explanation for the emergence of life? Contemporary geoscientists tend to…

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