42,772 articles
Karstification
Karstification is the process by which slightly acidic water dissolves soluble rock, most commonly limestone and dolomite, enlarging fractures into caves and producing karst landforms.
Karthish Manthiram
Karthish Manthiram is a chemical engineer and Bren Professor at Caltech known for electrocatalysis and lithium-mediated nitrogen reduction to ammonia, recognized by the 2025 Infosys Prize.
Kartik A. Srinivasan
Kartik A. Srinivasan is a NIST Fellow and physicist working on integrated quantum photonics, known for chip-based single-photon and entangled-photon sources, frequency combs, and the 2022 NIST Stratton Award.
Kary B. Mullis
Kary B. Mullis (1944–2019) was an American biochemist who invented the polymerase chain reaction (PCR) for copying DNA, winning half of the 1993 Nobel Prize in Chemistry.
KASCADE-Grande
KASCADE-Grande was an extensive air shower experiment at the Karlsruhe Institute of Technology studying the energy and composition of cosmic rays, which recorded data from 2003 to 2012.
Kasner metric
The Kasner metric, found by Edward Kasner in 1921, is an exact vacuum solution of Einstein's field equations describing an anisotropic but spatially homogeneous universe.
Kasper Moth‐Poulsen
Kasper Moth-Poulsen (born 1978 in Copenhagen) is a Danish-Swedish chemist known for molecular solar thermal (MOST) energy storage, and an ICREA research professor in Barcelona since 2021.
Kassite
Kassite is a rare calcium titanium oxide mineral named in 1965 for geologist Nikolai Kassin, first found at the Afrikanda complex on the Kola Peninsula, Russia.
Katabatic wind
A katabatic wind, also called a fall wind or gravity wind, flows downhill when gravity pulls cold, dense air down slopes in mountainous and glacial regions.
Kate Marvel
Kate Marvel (Katherine D. Marvel) is an American climate scientist and science communicator known for work on cloud feedbacks, climate sensitivity, and detection of human influence on climate.
Katepalli R. Sreenivasan
Katepalli R. Sreenivasan, known as K. R. Sreenivasan, is a fluid dynamicist who studies turbulence and has been a University Professor at New York University since 2009.
Kateri A. Ahrendt
Kateri A. Ahrendt is an American organic chemist, first author of the 2000 paper documenting the first highly enantioselective organocatalytic Diels–Alder reaction, cited by the 2021 Nobel Prize background.
Katerina Chatziioannou
Katerina Chatziioannou is a theoretical astrophysicist and Professor of Physics at Caltech who studies neutron-star matter and tests of general relativity with LIGO gravitational-wave data.
Katha
Katha, also spelled kattha or cottah, is a traditional unit of land area in Bangladesh, eastern India, and Nepal that varies from 720 to 3,645 square feet.
Katha (কঠা) (unit)
The katha, also spelled cottah, is a traditional South Asian land area unit, a subdivision of the bigha with no standard size, ranging from 600 to 2,880 square feet.
Katharina J. Franke
Katharina J. Franke is a physicist and professor at Freie Universität Berlin who studies single magnetic atoms and molecules on superconducting surfaces with low-temperature scanning tunneling microscopy.
Katharina Landfester
Katharina Landfester, born 1969 in Bochum, is a German chemist and director at the Max Planck Institute for Polymer Research in Mainz, known for the miniemulsion process.
Katharine Hayhoe
Katharine Hayhoe, born 1972, is an atmospheric scientist, Chief Scientist for The Nature Conservancy, and Texas Tech professor known for communicating climate science through shared values.
Katharine Mach
Katharine J. Mach is an American climate scientist known for research on climate change and armed conflict and on managed retreat, the planned movement of people out of hazardous places.
Katharine Tibbetts
Katharine Moore Tibbetts is an American chemist and Associate Professor at Virginia Commonwealth University whose research combines ultrafast laser spectroscopy of molecules with pulsed laser synthesis of nanomaterials; she received a PECASE award in 2019.
Katharine Venable Cashman
Katharine Venable Cashman is an American volcanologist, born 1954, known for her 2017 Science review proposing that magma is stored in vertically extensive systems spanning the whole crust.
Katherine Allstadt
Katherine (Kate) Allstadt is an American research geophysicist with the USGS Landslide Hazards Program in Golden, Colorado, known for using seismic recordings to study landslides, debris flows, and lahars.
Katherine de Kleer
Katherine de Kleer is a planetary scientist and professor at Caltech who studies volcanism on Jupiter's moon Io; she received the 2024 Harold C. Urey Prize.
Katherine Freese
Katherine Freese is an American theoretical cosmologist and astroparticle physicist at the University of Texas at Austin, known for natural inflation, dark matter detection, and the book The Cosmic Cocktail.
Katherine H. Freeman
Katherine H. Freeman is an American isotope geochemist at Penn State who reconstructs ancient climates from organic molecules and was elected to the National Academy of Sciences in 2013.
Katherine Mack
Katherine (Katie) Mack is a theoretical astrophysicist and cosmologist who studies dark matter, wrote The End of Everything, and holds the Hawking Chair at Perimeter Institute.
Katherine Mirica
Katherine A. Mirica is a Ukrainian-born chemist and tenured associate professor at Dartmouth College who designs conductive metal–organic frameworks for portable, low-power detection of gases and biomolecules.
Kathleen C. Taylor
Kathleen C. Taylor is an American physical chemist who joined General Motors in 1970, researched automotive exhaust catalysis, and received the American Chemical Society's 1989 Garvan Medal.
Kathrin Fenner
Kathrin Fenner, born 1972 in Zürich, is a Swiss environmental chemist at Eawag who studies how organic contaminants transform in the environment and leads the enviPath biotransformation database.
Kathryn Moler
Kathryn Moler is a Stanford professor of applied physics known for scanning SQUID microscopy of superconductors and topological materials; she was elected to the National Academy of Sciences in 2021.