What experiment did Stan have in mind? (where did organic molecules come from)

answer; //the above statement is (false);

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.