Physical and mathematical scientists

Catherine McCammon

Catherine McCammon is a mineral physicist at the Bayerisches Geoinstitut in Bayreuth, Germany, known for using Mössbauer spectroscopy to study iron in the deep Earth.

Catherine R. Mulzer, also published as Cathy Mulzer, is an American industrial chemist who created robust covalent organic frameworks for energy storage and works on polymer metallization for electronics.

Cathleen Crudden

Cathleen M. Crudden is a Canadian chemist at Queen's University known for showing that N-heterocyclic carbenes form exceptionally stable organic films on metal surfaces, winning the 2023 Polanyi Award.

Cathleen Synge Morawetz

Cathleen Synge Morawetz (1923–2017) was a Canadian-born mathematician at NYU's Courant Institute who proved shock-free transonic flows are unstable and led the institute from 1984 to 1988.

Cathy O'Neil

Cathy O'Neil is an American mathematician, Harvard PhD and former Barnard professor and hedge fund quant, known for Weapons of Math Destruction (2016) and the auditing firm ORCAA.

Cathy Whitlock

Cathy Whitlock is an American paleoecologist at Montana State University who reconstructs past fire and climate history from lake sediments and was elected to the National Academy of Sciences in 2018.

Cato Maximilian Guldberg

Cato Maximilian Guldberg (1836–1902) was a Norwegian chemist and mathematician who, with his brother-in-law Peter Waage, formulated the law of mass action in 1864 and taught applied mathematics at the University of Christiania, now Oslo.

Caucher Birkar

Caucher Birkar is a Kurdish-born British mathematician, born in Iran in 1978, who won the 2018 Fields Medal for proving the existence of minimal models in birational geometry.

Oct 15, 2026

CD-38 3220b

CD-38 3220b, better known as WASP-121 b and named Tylos, is an ultrahot Jupiter exoplanet discovered in 2015, orbiting its star every 30 hours about 858 light-years away.

Cecil Edgar Tilley

Cecil Edgar Tilley (1894–1973) was an Australian-born petrologist and mineralogist, professor of mineralogy and petrology at Cambridge from 1931 to 1961 and a leading figure in metamorphic petrology.

Cecil Eldon Leith

Cecil Eldon Leith, known as Chuck (1923–2016), was an American mathematician and climate scientist who built an early atmospheric general circulation model at Lawrence Livermore.

Cecil J. Nesbitt

Cecil J. Nesbitt (1912–2001) was a Canadian-born actuary and mathematician who spent his career at the University of Michigan and co-authored Actuarial Mathematics (1986), the field's seminal textbook.

Cecil Powell

Cecil Frank Powell was a British physicist at the University of Bristol who won the 1950 Nobel Prize in Physics for developing the photographic method and discovering the pion in cosmic radiation.

Cecil Reginald Burch

Cecil Reginald Burch, known as Bill, was a British physicist and engineer who figured aspheric optical surfaces with extreme accuracy, producing the wide-aperture Burch reflecting microscopes.

Cecilia Garraffo

Cecilia Garraffo is an Argentine-trained astrophysicist at the Smithsonian Astrophysical Observatory specializing in stellar magnetism and space weather around exoplanets, who founded the AstroAI Institute.

Cecilia Jarlskog

Cecilia Jarlskog is a Swedish theoretical particle physicist, professor emerita at Lund University, best known for the Jarlskog invariant, a convention-independent measure of CP violation in quark mixing.

Cecilia Payne-Gaposchkin

Cecilia Payne-Gaposchkin, born Cecilia Helena Payne, was a British-born American astronomer whose 1925 thesis showed stars are mostly hydrogen and helium; in 1956 she became Harvard's first woman full professor.

Cédric Villani

Cédric Villani, also known as Cédric Patrice Thierry Villani, is a French mathematician, born 1973, who received the 2010 Fields Medal for proving nonlinear Landau damping.

Cefe López

Cefe López, full name Ceferino López Fernández, is a Spanish physicist and research professor at CSIC's Instituto de Ciencia de Materiales de Madrid, known for random lasing.

Celâl Şengör

Celâl Şengör, born in Istanbul in 1955, is a Turkish geologist at Istanbul Technical University known for work on the Tethys ocean and Altaid mountain belts.

Celestine Mercer

Celestine N. Mercer is an American research geologist at the USGS in Denver, Colorado, working in igneous petrology and economic geology and honored with a PECASE award.

Celso Grebogi

Celso Grebogi is a Brazilian-born theoretical physicist known for chaos theory and the OGY method of controlling chaos, developed with Edward Ott and James Yorke.

Celso José da Costa

Celso José da Costa (born 1949) is a Brazilian differential geometer whose 1982 IMPA thesis discovered Costa's surface, the first new embedded minimal surface in two centuries.

César Lattes

César Lattes, born Cesare Mansueto Giulio Lattes (1924–2005), was a Brazilian experimental physicist who co-discovered the pion in 1947, produced it artificially in 1948, and helped found Brazilian physics institutions.

Cesare Arzelà

Cesare Arzelà (1847–1912) was an Italian mathematician and leading real analyst who taught at the University of Bologna and is known for the Ascoli-Arzelà theorem.

Cesare Burali-Forti

Cesare Burali-Forti (1861–1931) was an Italian mathematician and logician at the military academy in Turin, known for the 1897 paradox of ordinal numbers, the first modern logical paradox, and for his work in vector analysis.

Cesare Emiliani

Cesare Emiliani (1922–1995) was a geologist and micropaleontologist who founded paleoceanography by using oxygen isotopes in foraminifera shells from deep-sea cores to reconstruct past ocean temperatures, spending most of his career at the University of Miami.