Dylan Loeb McClain, The New York Times
Published: 26 Jul 2021 11:22 AM BdST
Updated: 26 Jul 2021 11:22 AM BdST FILE Steven Weinberg at the University of Texas at Austin in Austin, Texas, Aug 25, 2016. Weinberg, a theoretical physicist who discovered that two of the universe’s forces are really the same, for which he was awarded the Nobel Prize, and who helped lay the foundation for the development of the Standard Model, a theory that classifies all known elementary particles in the universe, making it one of the most important breakthroughs in physics in the 20th century, died on Friday, July 23, 2021, in a hospital in Austin, Texas. He was 88. (Tamir Kalifa/The New York Times)