how old is earth?

Answer 1

The earth is about 4.5 billion years old.

Answer 2

I'm surprised it took that many answerers before a creationist young earther chimed in. If you believe that natural laws are essentially the same now as throughout time (that is, that the universe came into existence with an internally consistent physico-chemical reality and hasn't seen any magical intervention since) then the evidence indicates a probable age of about 4.5 billion (us billion) years.

As for the argument that theories are not proof, yes that is true. No one saw what happened and so we will never be able to prove it. However, when I see bird footprints in the sand by a park bench, I develop the theory that a bird was recently there. I could imagine that some god put those footprints there to fool me, but I tend to believe that is unlikely.

The 6000 year age of the earth is completely untenable. We can go back 5000 of those years through history, and in many places where these old civilizations are known, there are relicts from even older civilzations that were clearly there for hundreds of years at least. You have to populate the earth, flood it out and repopulate it with animals and plants in less than a thousand years, which sure does stress my credulility.

Answer 3

An awful lot of people seem to just want to parrot the standard 4.5 billion years, but I wonder if they've investigated just what evidence there is for that. And the assumptions of those that promote that age.

Most dating methods indicate the earth is young
http://www.creationontheweb.com/content/view/3040/
Saltiness of the sea
Decay of earth's magnetic field
Lunar recession
Helium in the wrong places
human history too short
etc
etc

The methods used to 'prove' age are radiometric dating and the rocks/fossils.

Yet radiometric dating is demonstrably flawed - dating rock from Mt St Helens as millions of years old.
Check here for loads of info about radiometric dating
http://www.creationontheweb.com/content/view/3059/
But if it cannot be trusted for rocks of known age, why trust it for rocks of unknown age?

As for the (sedimentary) rocks and fossils - there is no direct dating method. In fact rocks are used to date fossils, and fossils are used to date rocks - all based on uniformitarian *assumptions*. That is assume the earth is old and then interpret the evidence to show that -duh- the earth is old.

There is much evidence to suggest that sedimentary rocks are young - polystrate fossils, tightly folded strata, etc. In fact dinosaur bones have been found containing red blood cells - hardly 65 million years old!
http://www.googlesyndicatedsearch.com/u/creationontheweb?q=dino+blood&hl=en&lr=

Answer 4

umm it depends on your belif system if u belive that were from monkeys then yes it is about 30 millon years old or posibly 30 billon years (i forgot)
but if u belive that we were created then it is 8 thousond years old
now there is no proof of life on the earth more that 8 thousond years ago but most scienteist belive that lif started about 30 millon (or billon) years ago but there is no proof of this


my personal belif is 8 thousond years ago and it was created in 6 days (the 7 day is for rest)

Answer 5

Best date based on so called absolute dating methods (radioactive isotopes) is 4.54 Ga (1Ga=1,000,000,000) the oldest known rocks were formed 4.35Ga and the solar system is approx 4.58Ga.

This question was asked about a week ago, so you can check the more detailed answers there!

Answer 6

Something like 4.5 billion years old from studying the age of meteors by isotope analysis.

Answer 7

Approximately 4.6 billion years old

Answer 8

Does not really matter .......... Cos you are only gonna see it for (give or take) 80 years. Concentrate on making those 80 the most important in earths history.

Answer 9

About 4.5 billion years.

Answer 10

4.55 billion years old.

This data has been gathered from meteorites and some of the oldest rocks on the planet by using U238-Pb206 age dating and plotting it on a Concordia curve.