California Institute of Technology alumni

Donald Arthur Glaser (September 21, 1926 – February 28, 2013) was an American physicist, neurobiologist, and the winner of the 1960 Nobel Prize in Physics for his invention of the bubble chamber used in subatomic particle physics.

Linus Carl Pauling ( PAW-ling; February 28, 1901 – August 19, 1994) was an American chemist, biochemist, chemical engineer, peace activist, author, and educator. He published more than 1,200 papers and books, of which about 850 dealt with scientific topics. New Scientist called him one of the 20 greatest scientists of all time. For his scientific work, Pauling was awarded the Nobel Prize in Chemistry in 1954. For his peace activism, he was awarded the Nobel Peace Prize in 1962. He is one of five people to have won more than one Nobel Prize (the others being Marie Curie, John Bardeen, Frederick Sanger, and Karl Barry Sharpless). Of these, he is the only person to have been awarded two unshared Nobel Prizes, and one of two people to be awarded Nobel Prizes in different fields, the other being Marie Curie.Pauling was one of the founders of the fields of quantum chemistry and molecular biology. His contributions to the theory of the chemical bond include the concept of orbital hybridisation and the first accurate scale of electronegativities of the elements. Pauling also worked on the structures of biological molecules, and showed the importance of the alpha helix and beta sheet in protein secondary structure. Pauling's approach combined methods and results from X-ray crystallography, molecular model building, and quantum chemistry. His discoveries inspired the work of Rosalind Franklin, James Watson, Francis Crick, and Maurice Wilkins on the structure of DNA, which in turn made it possible for geneticists to crack the DNA code of all organisms.In his later years, he promoted nuclear disarmament, as well as orthomolecular medicine, megavitamin therapy, and dietary supplements, especially ascorbic acid (commonly known as Vitamin C). None of his ideas concerning the medical usefulness of large doses of vitamins have gained much acceptance in the mainstream scientific community. He was married to the American human rights activist Ava Helen Pauling.

Eugene Merle Shoemaker (April 28, 1928 – July 18, 1997) was an American geologist. He co-discovered Comet Shoemaker–Levy 9 with his wife Carolyn S. Shoemaker and David H. Levy. This comet hit Jupiter in July 1994: the impact was televised around the world. Shoemaker also studied terrestrial craters, such as Barringer Meteor Crater in Arizona, and along with Edward Chao provided the first conclusive evidence of its origin as an impact crater. He was also the first director of the United States Geological Survey's Astrogeology Research Program.
He was killed in a car accident while visiting an impact crater site in Australia. After his death, some of his ashes were carried to the Moon with the Lunar Prospector mission.

James Donahue Burke (September 18, 1925 – August 19, 2023) was an American lunar settlement and exploration expert. He was known for being the first manager of the Ranger program, and considered one of the pioneers of America's space program.

Lee R. Scherer (September 20, 1919 – May 7, 2011) was an American aeronautical engineer and director of NASA's John F. Kennedy Space Center (KSC) from January 19, 1975 to September 2, 1979. Prior to his appointment as KSC director, Scherer was director of NASA's Flight Research Center, Edwards, California, responsible for the conduct of advanced aeronautical flight research.

Jack Justin Stiffler (1934–2019) was an American electrical engineer, computer scientist and entrepreneur, a Fellow of the Institute of Electrical and Electronics Engineers who made key contributions in the areas of communications (especially coding theory) and fault-tolerant computing.

Hollis Burnley Chenery (January 6, 1918 – September 1, 1994) was an American economist well known for his pioneering contribution in the field of development economics.

Alvin Virgil Tollestrup (March 22, 1924 – February 9, 2020) was an American high-energy particle physicist best known for his key roles in the development of the superconducting magnets for Fermilab's Tevatron and the formation of CDF.

Ralph Dana Winter (December 8, 1924 – May 20, 2009) was an American missiologist and Presbyterian missionary who helped pioneer Theological Education by Extension, raised the debate about the role of the church and mission structures and became well known as the advocate for pioneer outreach among unreached people groups. He was the founder of the U.S. Center for World Mission (USCWM, now Frontier Ventures), William Carey International University, and the International Society for Frontier Missiology.His 1974 presentation at the Congress for World Evangelization in Lausanne, Switzerland – an event organized by American evangelist Billy Graham – was a watershed moment for global mission.It was during this presentation that Winter shifted global mission strategy from a focus on political boundaries to a focus on distinct people groups. Winter argued that instead of targeting countries, mission agencies needed to target the thousands of people groups worldwide, over half of which have not been reached with the gospel message.
Billy Graham once wrote: “Ralph Winter has not only helped promote evangelism among many mission boards around the world, but by his research, training and publishing he has accelerated world evangelization."In 2005, Winter was named by Time magazine as one of the 25 Most Influential Evangelicals in America. Dr. Ray Tallman, shortly after Winter's death, described him as "perhaps the most influential person in missions of the last 50 years and has influenced missions globally more than anyone I can think of."

Franklin Otis Booth Jr. (September 28, 1923 – June 15, 2008) was an American billionaire newspaper executive and investor. He was a Los Angeles Times executive and early investor in Berkshire Hathaway, which made him a billionaire. Booth was also a philanthropist and a great-grandson of Gen. Harrison Gray Otis, founder of the Times.