earthcurves: the art of will kramer (Google earth digital globe)

earthcurves: the art of will kramer

The Age of the Earth
The Earth is accepted by scientists to be around 4.5 billion years old. How do we know the Earth is this old? Some of the lines of evidence for an ancient Earth are presented.

Earth: 2025 by Swirve.com
Location for game play. Also includes information and forums.