Because of the properties of helium, all helium should escape a rock within 100,000 years. This means that no rock over 100,000 years should have any helium left. However, we… read more →
If the earth were really billions of years old, we would expect to see more salt in the sea based on the current rate of accumulation. The maximum age of… read more →
DNA does not last long, and the maximum age of DNA in natural environments is 10,000 years, but DNA has been found in these: Item Supposed age Bacteria 250 million… read more →
Earth's rotation is slowing by 0.009 seconds per year. Extrapolated back, this sets an upper limit on the earth/moon system of 1.2 billion years, as opposed to the 4.5 billion… read more →