Changes

* the [[moon]] is receding from the [[Earth]] at a rate suggesting it would have been too close billions of years ago

* the [[moon]] is receding from the [[Earth]] at a rate suggesting it would have been too close billions of years ago

* spiral galaxies appear to be young, and proposals of the existence of dark matter are needed to reconcile them with belief in an old universe

* spiral galaxies appear to be young, and proposals of the existence of dark matter are needed to reconcile them with belief in an old universe

* the massive [[Great Lakes]] are receding in volume too rapidly

* the massive [[Great Lakes]] are receding in volume too rapidly to have existed a long time

* freshwater lakes are known to be relatively young<ref>Ice Age theories were developed to explain this, but massive freshwater lakes exist even near the equator</ref>

* freshwater lakes are known to be relatively young<ref>Ice Age theories were developed to explain this, but massive freshwater lakes exist even near the equator</ref>

* The [[Earth]]'s [[magnetism]] is changing at too fast a rate for the Earth to be old.  The Earth's magnetic field is weakening in strength by 5% every 100 years<ref>[http://image.gsfc.nasa.gov/poetry/tour/AAmag.html Earth's Magnetic Field and its Changes in Time], from [[NASA]]</ref>.  [[Exponential decay]] at that rate is not compatible with an old Earth, since it would have required the Earth's magnetic field to be impossibly large at the times postulated by old-Earth theory.  

* The [[Earth]]'s [[magnetism]] is changing at too fast a rate for the Earth to be old.  The Earth's magnetic field is weakening in strength by 5% every 100 years<ref>[http://image.gsfc.nasa.gov/poetry/tour/AAmag.html Earth's Magnetic Field and its Changes in Time], from [[NASA]]</ref>.  [[Exponential decay]] at that rate is not compatible with an old Earth, since it would have required the Earth's magnetic field to be impossibly large at the times postulated by old-Earth theory.