It's all guesswork, of course. But the latest guess from scientists who analyzed Apollo 16 rocks is an age of 4.4 billion years.
chron.com World, Houston Chronicle: World
Wed, 08/17/2011 - 10:09am
It's all guesswork, of course. But the latest guess from scientists who analyzed Apollo 16 rocks is an age of 4.4 billion years.