posted on Oct, 19 2011 @ 08:50 PM
reply to post by Illustronic
Well, you are looking at a snapshot view.
Take a trek back in time to what we suspect, but certainly do not know...
The Sun may have been a lot hotter years ago.
Mars shows signs of having liquid water flowing on it's surface. This would not be possible if there was not an atmosphere at one time present to
allow water to be in a liquid state, let alone the temperature.
It shows signs that one complete hemisphere was completely obliterated by some kind of catastrophic calamity.
It may have had a magnetosphere like earth, but lost it over time due to cooling of it's one time liquid iron center, and it had one once, because we
can see evidence of volcanic action.
We know nothing of where the earth or mars once was in relation to orbital distances from the sun back when the earth was only a few billion years
Some day, the Sun may claim all of the inner planets. We are not spiraling outward, but rather inward.
Venus itself, may have been very earth like a few billion years ago.
Humans have only been able to contemplate this solar system for .000000000001% of it's existence, so I will bet that so much has transpired in this
evolution, that the best science fiction has not even touched on what really transpired here.