Pierre Teilhard de Chardin was a French Jesuit priest and paleontologist who sought to synthesize science and religion. He believed that the universe was evolving toward greater complexity, consciousness, and unity, with humanity playing a key role. He coined terms like "noosphere" to describe a global consciousness formed by human thought. Though his ideas were controversial and criticized by both theologians and scientists, Teilhard saw the universe as physically and spiritually evolving toward an "Omega Point" of complete union with God.