The Neo Nerd
Well-Known Member
Not really.... life can't survive burning up in the atmosphere as it enters. Even hidden deep in a meteorite or asteroid it would be killed as the rock heats to a semi-liquid around it.
Biomolecules like amino acids can survive the trip, but little else. And you will find that the actual scientists who support panspermia only go as far as seeding the planet with simple biomolecules like amino acids. Not the arrival of actual organisms.
And again, there was no need for Earth to attract anything as amino acids are stupidly common in the universe and occur just about everywhere. In far greater variety and abundance than on Earth. Life on Earth uses a pathetically small number of possible amino acids. (Only 22 out of more than 100)
Aliens would likely use entirely different sets of amino acids from any living thing on Earth as most amino acids in space that don't occur naturally on Earth.
Thus, it is safe to say that life started here with the amino acids available on Earth rather than in space with all the possible amino acids out there.
wa:do
Let's not forget that panspermia doesn't solve the mystery of where life came from, just puts it a step back.
Where did the life that was seeded here come from?