Welcome to the Proterozoic discussion forum. In this forum, you may ask questions, start new discussions, and view existing posts. Click here to create a discussion account.

Click on the Subscribe button to receive email notifications each time a new discussion is started in this forum.
Ask a Question
Start new Discussion
  Subject Replies Date
I was wondering if we know the radius of Earths orbit durning the Proterozoic Eon. If I understand correctly, the sun was estimated to be 1/3 it's pr... 0 10/1/2013