are we alone in the universe?

[mechanicalbrain]

Originally Posted by Marc P.

What's not yet known is what kicked off the reaction which led to the amino acids to form into bacteria.

actually we know exactly how they are made and are even able to create them in labratories by simulating earths environment (not with some fancy machine) and chemicals present at the time. the word Atom comes from the greek word Atomos which was basically thought to be the smallest particle of matter. however no real knowledge came until Rutherford and the plum pudding model which comes after Darwin.