In this short video, physicist Ard Louis expresses some doubts about Intelligent Design, noting that his primary resistance to the movement is based on theological grounds rather than science.

Many independent measurements have established that the Earth and the universe are billions of years old. Geologists have found annual layers in glaciers that can be counted back 740,000 years. Using the known rate of change in radio-active elements (radiometric dating), some Earth rocks have been shown to be billions of years old, while the oldest solar system rocks are dated at 4.6 billion years. Astronomers use the distance to galaxies and the speed of light to calculate that the light has been traveling for billions of years. The expansion of the universe gives an age for the universe as a whole: 13.7 billion years old. (Updated April 16, 2012)

In today's video, Oxford physicist Ard Louis discusses the famous debate between renowned evolutionary biologists Stephen Jay Gould and Simon Conway Morris over the idea of evolutionary convergence.

In this video clip, Oxford University biophysicist, Ard Louis posits that one of the reasons Christians are hostile to evolution is that they latch onto a particular definition, which puts it in conflict with their theological convictions.

Every field of science has unanswered questions and gaps in our understanding. Scientists typically view these as open research questions. Others sometimes argue that if science can’t explain how something happened, then God must be the explanation. Such arguments are called “god-of-the-gaps” arguments. The risk in these arguments is that science is always developing. If gaps in scientific knowledge are the basis for belief in God, then as scientists fill in the gaps, the evidence for God disappears. The God of the Bible, however, is much more than a god of the gaps. Christians believe that God is always at work in the natural world, in the gaps as well as in the areas that science can explain.

Genesis 6-9 tells the fascinating story of Noah, the Ark, and the Flood. Some Christians interpret the text to mean that the biblical flood must have covered the entire globe. They also work to explain the evidence in rocks and fossils in terms of this world-wide flood. Other Christians do not feel the text requires that the flood be global, but could have covered the small region of earth known to Noah. The scientific and historical evidence does not support a global flood, but is consistent with a catastrophic regional flood. Beyond its place in history, the Genesis flood teaches us about human depravity, faith, obedience, divine judgment, grace and mercy.

In our sixth BioLogos videocast, we take a look at the age of the Earth. We explain four methods scientists have used to determine that age: tree ring, lake varve, radiometric, and seafloor spread dating, and also offer some theological insight on how an old earth can fit with the first chapters of Genesis.

Many scientists feel that the ID movement is an attempt to locate gaps in our scientific knowledge and then to presume those gaps can only be filled by intervention of an external intelligence. It is important to note that ID leaders do not view their work this way.

Over the past two decades, the intelligent design movement has been working diligently to offer a parallel version of modern science, one that can scientifically show God at work in creation.

In this video, five notable scientists (John Polkinghorne, David Wilkinson, Rodney Holder, Peter Williams and Graham Swinerd) offer their perspective on the strengths and limitations of the fine-tuning argument as a pointer to God.

I am asked all the time to explain, in a nutshell, why irreducible complexity is not a valid argument in favor of intelligent design. However, I have never heard anyone put it in a more cogent form than Oxford biophysicist Ard Louis in this video.

In this brief video, Physicist Ard Louis looks at two important aspects of time to consider when reading Genesis 1: chronology and the idea of “deep time”.

A common argument against biological evolution is that the theory contradicts the second law of thermodynamics. The second law says that disorder, or entropy, always increases or stays the same over time. How then can evolution produce more complex life forms over time? The answer is that the second law is only valid in closed systems with no external sources of energy. Since the Earth receives continual energy from the Sun, the second law does not apply.

Fine-tuning refers to the surprising precision of nature’s physical constants, and the beginning state of the Universe. To explain the present state of the universe, even the best scientific theories require that the physical constants of nature and the beginning state of the Universe have extremely precise values.