push effectively.
Now that weve drawn a rough portrait of the Man from Planet X, is there
anything we can guess about Planet X itself? 108
Here again the answer is a familiar one; his planet is probably very much like ours. We would probably be able to live on it.
First of all, Planet X cant be much larger or much smaller than the earth. If it were much bigger, the gravity would be so crushingly great that life would never even get started. If it were too small, it would not have sufficient gravitational pull to hang on to its gases and there would be no air to breathe.
The planets atmosphere would be much like ours. There are only two chemical combinations that are complex enough to support life: the carbon-oxygen-hydrogen cycle we live on, and the chlorine-fluoride , methane cycle. The latter is a highly explosive mixture and though it is conceivable that somewhere there could be a life-form living on it, it is not likely. This cycle is so complex that the chances are heavily in favor of oxygen-based life developing long before the chlorine-based form of got a chance.
Planet X would have land and sea masses and a climate with drastic changes like ours. If the climate were static there would be no incentive for our visitors race to build anything. Variable hot and cold, wet and dry seasons are needed to push him around. And, of course, there would have to be land for our spaceman to live on and water for him to drink.
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