John Mather

John Mather is an American astrophysicist and a Nobel laureate known for his significant contributions to our understanding of the universe. He played a key role in the Cosmic Background Explorer (COBE) satellite project, which helped confirm the Big Bang theory by measuring the cosmic microwave background radiation—radiation left over from the early universe. His work provided crucial evidence that supports the idea that the universe is expanding. Mather's research and findings have greatly advanced our knowledge of cosmology, the study of the universe's origin, structure, and evolution. He is a prominent figure in modern astrophysics.