Old Earth creationism is an umbrella term that includes views such as gap creationism, progressive creationism, and evolutionary creationism. It is more compatible with mainstream scientific views on physics, chemistry, geology, and the age of the Earth than young Earth creationism. Radiometric dating shows that the Earth is approximately 4.54 billion years old, and the oldest terrestrial and lunar samples are consistent with this age. Progressive creationism holds that God guides natural processes like evolution and mutation over time. Theistic evolution asserts that religious teachings about God creating the universe are compatible with evolution occurring as a natural process within that creation.