Atheism is definitely NOT a religion, in my opinion. People even say that science is a religion, but that is even less true. Religion generally includes one or more articles of faith, and that is one thing that science has no place for. In science nothing is sacred, and anything “proven” today can be disproven tomorrow. Science strives to offer the best explanation given the limits of current measurement tools and analytical techniques. Thus its conclusions can change as tools and techniques improve. It is ironic that a highly educated scientist is less certain about his knowledge than is an uneducated but devout religious person. That is the nature of faith, and what in my mind fundamentally distinguishes atheism, agnosticism, and science from religion.