
Iben (theoretical work)
Iben’s theoretical work involves studying the detailed processes inside stars, particularly during their later stages of evolution. He models how stars burn their fuel, change in size and brightness, and eventually become objects like white dwarfs or supernovae. By using physics and mathematics, Iben predicts how stars behave over millions to billions of years, helping us understand their life cycles. His work provides a framework for interpreting observations and improving our knowledge of stellar phenomena, contributing to the broader understanding of how stars and, ultimately, galaxies develop over cosmic time.