 John Hartnett (physicist)

John Hartnett is an Australian astrophysicist known for his work in the field of cosmology, particularly within the context of creation science. He is associated with a young Earth creationist perspective, which posits that the Earth and the universe are significantly younger than mainstream science suggests. Hartnett has been involved in research related to the cosmic microwave background radiation and has published papers that challenge the conventional understanding of cosmology.