You may find this link interesting. It's a remote viewing of Mars 1 million years ago. The information is said to come from released documents from CIA and supposedly information is unaltered.
https://www.youtube.com/watch?v=rVWbwd8apTw
If your time is limited for viewing you might forward the video to 11:00 where it gets very interesting.
Is it fact or fiction? I don't know...I'm neither a believer or disbeliever. I can't think of any reason that it couldn't be fact. I've heard/read about people who claim we originated on Mars.