OT: Carbon Dioxide races -> known vs unknown -> terraforming mars -> is or is not

[macjimmy]

This reminds me of something I once read about atmosphereic formation on earth. Seems like a different atmosphere on a planet could be a function of its age, or if it has life or not. IIRC, earth's atomsphere was a highly toxic combination of volcanic gases and such before early single celled life "terraformed" earth into the oxygen-enriched enviroment we have today.

[Loser]

Originally posted by Imperator Fyron:
There actually are some silicon based lifeforms on earth.

Are you sure of this?

I would be most pleased to see a link to information on this. It would be really fascinating.