“I expect his life-substance would be in evidence on every planet.”
That’s an odd expectation.
What do you consider “life-substance”?
Have we found “that” on Mars?
Why is it ODD ..??
If God created the universe (which HE did) .. it should be a given that evidence of life would be found.
And .. science has now begun to believe that such evidence exists. While they may not be what we would consider “fingerprints”, they certainly are tidbits of life left behind.
Amazing ..!!