When is it standard to put the decimal at the billion mark?!? That makes me 0.000000000~odd years old!<quoted text>
No, to three significant figures: 13.798+-.037 billion years.
Probably. Best estimates for the age of the Earth are around 4.6. I think just short of that.Right. My impression was that the age of condensation is determined by other objects in the solar system, under the assumption the earth condensed at the same time. Directly dated crystals on earth go back to zircons of age 4.0 billion years.
Here's two interesting pieces I found on it:
(the first is just a news piece, the second an actual paper)