William Alfred Fowler (August 9, 1911 – March 14, 1995) was an American nuclear physicist, later astrophysicist, who, with Subrahmanyan Chandrasekhar, was awarded the 1983 Nobel Prize in Physics. He is known for his theoretical and experimental research into nuclear reactions within stars and the energy elements produced in the process and was one of the authors of the influential B2FH paper.

The California Institute of Technology (branded as Caltech) is a private research university in Pasadena, California. The university is responsible for many modern scientific advancements and is among a small group of institutes of technology in the United States that are strongly devoted to the instruction of pure and applied sciences. Due to its history of technological innovation, Caltech has been considered to be one of the world's most prestigious universities.