Physical world and mathematics

Mark A. Kasevich

Mark A. Kasevich is an American experimental atomic physicist and Stanford professor elected to the National Academy of Sciences in 2022, known for light-pulse atom interferometry and precision quantum sensing.

Mark A. Norell

Mark Norell (1957–2025) was an American vertebrate paleontologist and longtime curator at the American Museum of Natural History, known for work on the dinosaur–bird transition and Gobi Desert discoveries.

Sep 20, 2026

Mark A. Ratner

Mark A. Ratner (1942–2026) was an American theoretical chemist at Northwestern University who co-proposed in 1974 that a single molecule could act as an electronic rectifier, founding molecular electronics.

Mark A. Richards

Mark A. Richards is an American geophysicist at UC Berkeley who studies mantle convection, hotspots, and flood basalts, and served as provost at the University of Washington.

Mark and recapture

Mark and recapture, also called capture-recapture, is a statistical method for estimating population size: individuals are captured, marked, and released, and the marked proportion in later samples is back-calculated.

Mark Azbel

Mark Azbel, or Mark Yakovlevich Azbel (1932–2020), was a Soviet-born Israeli condensed-matter physicist known for the Azbel–Kaner cyclotron resonance and the Azbel–Hofstadter problem, and a leading refusenik who emigrated to Israel in 1977.

Mark B. Wise

Mark B. Wise (1953–2026) was a Canadian-born theoretical particle physicist who spent his career at Caltech, known for heavy quark effective theory and proposing axions as dark matter.

Mark Bailey (astronomer)

Mark Edward Bailey is an English astronomer known for work on the origin and dynamical evolution of comets, and Director of Armagh Observatory from 1995 to 2016.

Mark C. Herrmann

Mark C. Herrmann is an American plasma physicist at Lawrence Livermore National Laboratory who directed the National Ignition Facility and led the 2022 experiments achieving fusion ignition and scientific breakeven.

Mark Crimmin

Mark R. Crimmin is a British organometallic chemist and Professor at Imperial College London, known for a hexagonal planar transition-metal complex in Nature in 2019 and fluorocarbon recycling.

Mark D. Allendorf

Mark D. Allendorf is a chemist and Senior Scientist at Sandia National Laboratories in Livermore, California, who founded and co-directs HyMARC, a five-laboratory Department of Energy consortium on hydrogen storage materials.

Mark D. Kurz

Mark D. Kurz, also known as Mark Kurz, is an American isotope geochemist and Senior Scientist at Woods Hole Oceanographic Institution, known for pioneering helium isotope studies of the mantle.

Mark D. Zoback

Mark D. Zoback is an American geophysicist, emeritus professor at Stanford University, known for measuring crustal stress, fault strength, and reservoir geomechanics for energy development.

Mark Dean (computer engineer)

Mark Dean is an American computer engineer who holds three of the nine patents on the original IBM PC, co-invented the ISA bus, and holds more than 40 patents.

Mark E. Davis

Mark E. Davis is an American chemical engineer and emeritus Caltech professor, elected to all three US National Academies, known for zeolite catalysis and the 2010 first demonstration of RNA interference in humans.

Mark E. J. Newman

Mark E. J. Newman is a physicist at the University of Michigan known for network science, including the Girvan–Newman community detection method and the textbook Networks.

Mark E. Meyerhoff

Mark E. Meyerhoff is an American analytical chemist, the Philip J. Elving Professor Emeritus at the University of Michigan, known for chemical sensors and nitric oxide-releasing polymers.

Mark E. Tuckerman

Mark E. Tuckerman is a theoretical and computational chemist, Professor of Chemistry at New York University, best known for introducing the Nosé–Hoover chains thermostat method.

Mark E. Welland

Mark E. Welland, born in 1955, is a British nanoscientist at the University of Cambridge who established the Cambridge Nanoscience Centre and was knighted in 2011.

Mark Edward Thompson

Mark Edward Thompson is an American inorganic chemist at the University of Southern California whose phosphorescent iridium OLED materials, developed with Stephen Forrest, are used in displays worldwide.

Mark Ellingham

Mark Norman Ellingham is a graph theorist at Vanderbilt University in Nashville, Tennessee, known for work on graph embeddings and the Ellingham–Horton graphs, which answered a conjecture of W. T. Tutte.

Mark Embree

Mark Embree is a mathematician at Virginia Tech working in numerical linear algebra and spectral theory, co-author of the 2005 monograph Spectra and Pseudospectra with Lloyd Trefethen.

Mark Freidlin

Mark Iosifovich Freidlin, born 1938 in Moscow, is a Russian-American probability theorist who co-founded Freidlin–Wentzell theory of small random perturbations of dynamical systems, used in physics, biology, and economics.

Mark G. Raizen

Mark G. Raizen is an American experimental physicist at the University of Texas at Austin whose lab observed non-exponential quantum tunnelling decay and measured a Brownian particle's velocity.

Mark Goresky

Mark Goresky is a mathematician best known as co-creator, with Robert MacPherson, of intersection homology, a homology theory for singular spaces that restores Poincaré duality.

Sep 20, 2026

Mark Grinstaff

Mark W. Grinstaff is a chemist and biomedical engineer at Boston University working on biodegradable polymers and drug delivery, co-founding companies whose products are used in clinics.

Mark I. Stockman

Mark I. Stockman (M. I. Stockman) was a Soviet-born American theoretical physicist at Georgia State University who co-founded quantum nanoplasmonics and proposed the spaser, a nanoscale counterpart of the laser.

Mark Inghram

Mark Inghram (1919–2003) was an American physicist and mass spectrometrist at the University of Chicago who discovered more than a dozen isotopes and supported Patterson's determination of the Earth's age.