While I also believe that we are definitely not alone is the universe, I have trouble understanding how this scientist could have come to the conclusion that this fossil was not of Earthly origin considering that it had impacted the Earth several hundred years ago and had been observed several...
I also have some of the same questions that many of you have proposed. I have been wondering though on how he came to the conclusion that these 'organisms' were not from Earth (if they are even fossils in the first place).
I am not familiar with much in the way of biology and how such things...