An image of the oldest rock on Earth?
http://www.bbc.co.uk/news/science-environment-26324968
A tiny 4.4-billion-year-old crystal has been confirmed as the oldest fragment of Earth's crust.
Why Science is so cool!
Ray.
http://www.bbc.co.uk/news/science-environment-26324968
A tiny 4.4-billion-year-old crystal has been confirmed as the oldest fragment of Earth's crust.
Why Science is so cool!
Ray.