let me screw with your heads abit
All life on earth comes from the same "tree of life" - right? that means from genetic material you can draw a correlation between any 2 people, any 2 animals, any 2 species. For example you the reader of this text share 26% of your genes with Yeast! As far as we know (remember my other post - it would take 1 out of 10 power 150 chances to create RNA ....blah blah blah). But if it was done once - why can it not be done again? Right? Why then do we have ONE really prosperous tree of life and nothing else? hmmm.... so to answer this theory, we have to factor in some observation
1) Mars looks like it was once wet and thriving
2) All life on earth seem to have a common seeding point
Suppose we find Life on Mars, it could fall into 3 categories
1) we share a common DNA (in the same tree of life with us...where "us" is the "tree of life" over here)
2) it could be DNA but not from the same "tree of life"
3) it could be non-life DNA
All of these have interesting outcomes i.e. it could mean that
1) we may be a result of panspermia (in whatever form)
2) the same "miracle" of DNA formation that took place here happened in Mars and could happen elsewhere
3) DNA is just one possible life forming molecules.
All Mushrooms are edible! Some Mushroom are only edible ONCE!