Sorry, got to add this looking at some comments.
Atheism by the nature of the word is associated with belief. And by nature of our society with Science.
Science is not a belief, not at all in the same manner as religion. Do not mix that up. Science is about disbelief without accompanying evidence that will withstand multiple repeated efforts to disprove it.
Science is about working through evidence and theories to determine facts and understanding.
Also, don't confuse what Scientific Theory means either. It does not mean, nor imply, that all theories are just waiting to be disproved. So many people completely missunderstand this. Many Scientific Theories are considered facts and treated as essentially true as 2 2=4. There are areas of the Universe - lot's of course - we don't understand, and in this area we have theories that may or may not stand up to the test of time and research. But don't confuse those with areas where the definitive Scientific Theory is treated as fact.
For example we may not fully understand gravity, but our theory of understanding how everything will fall on the Earth if dropped is pretty watertight. If I know your weight and the height of a building you are (hypothetically of course) going to step off, I can tell you exactly how long it will take before you meet the ground, how fast you will be going when you do, and with what force you will strike the ground. And I can do that every time and I will be right every time. There is no theory waiting to be disproved. I will never be wrong unless I make a mistake in my calculations, but the formula itself will never be wrong.
It's fun to consider semantics, "God" and atheism, etc. but don't go thinking Science and Scientific Theory and Scientific Process is something similar.
Try to be reasonable... its easier than you think...
