Radioactive dating and the age of the earth

This may simply have to do with what the media is talking about.

radioactive dating and the age of the earth-6

By studying other planets, we are learning more about our own planet.

The effects of impacts and how they might affect us here on Earth, global climate change (Venus vs.

We can get absolute ages only if we have rocks from that surface.

For others, all we are doing is getting a relative age, using things like the formation of craters and other features on a surface.

The biggest assumption is that, to first order, the number of asteroids and comets hitting the Earth and the Moon was the same as for Mercury, Venus, and Mars. The bottom line is that the more craters one sees, the older the surface is.

This can be interpreted in two ways: why it is important to know the age of a planet or how is age dating important in determining the age of a planet?

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Earth) and what could happen to Earth in an extreme case, etc.

From Wikipedia, radioactive decay is the process in which an unstable atomic nucleus spontaneously loses energy by emitting ionizing particles and radiation.

The amount of time it takes for an unstable isotope to decay is determined statistically by looking at how long it takes for a large number of the same radioactive isotopes to decay to half its original amount.

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