

Actually we do know.
Most precursors to life have been found in asteroids.
Life is everywhere in the universe, we are just too tiny and incapable to know that.
Edit: also too fucking arrogant. It is very clear to anybody with a scientific mind that has paid any sort of attention, we, like everything else, are products of exploding stars. There is not one single thing unique about Earth.
Edit2 For the knee jerk unscientific down voters… Here’s a little video for you, I’m sorry it doesn’t use finger puppets or sock puppets… It’s PBS SpaceTime which is for children…still might be a little too advanced but you could give it a try https://youtu.be/nKb4zcyqjXQ
This sub is a fucking joke.