42,772 articles
Jupiter
Jupiter is the fifth planet from the Sun and the largest in the solar system, a gas giant with 115 known moons and a day of 9.9 hours.
Jupiter mass
The Jupiter mass is a unit of mass in astronomy, defined by Jupiter's mass of about 1.898 × 10^27 kg, standard for giant planets and brown dwarfs.
Jupiter-mass binary objects
Jupiter-mass binary objects (JuMBOs) are candidate pairs of planetary-mass objects, 0.7 to 13 Jupiter masses, found in the Orion Nebula's Trapezium Cluster by JWST in 2023; no theory explains them.
Jupiter's dilute core
Jupiter's dilute core is an interior structure in which heavy elements are dissolved into the planet's hydrogen and helium envelope, revealed by NASA's Juno spacecraft.
Jupiter's polar cyclones
Jupiter's polar cyclones are clusters of large, long-lived storms at the planet's poles: eight circumpolar cyclones in the north and five in the south, discovered by NASA's Juno spacecraft in 2016.
Jurassic
The Jurassic, also called the Jurassic period, is the middle Mesozoic period from 201.4 to 145 million years ago, when dinosaurs rose to dominance and Pangea split apart.
Jurassic Coast
The Jurassic Coast, officially the Dorset and East Devon Coast, is a 95-mile stretch of England's south coast made a UNESCO World Heritage Site in 2001.
Jürg Fröhlich
Jürg Fröhlich, born 1946 in Schaffhausen, Switzerland, is a Swiss mathematical physicist and professor emeritus at ETH Zurich, known for his 1981 proof of the Kosterlitz-Thouless transition and work on Anderson localization.
Jürgen Caro
Jürgen Caro, born 1951, is a German physical chemist, professor at Leibniz University Hannover, known for transport-optimized zeolite, MOF, and COF membranes and membrane reactors.
Jürgen Cox
Jürgen Cox is a computational proteomics scientist known for developing MaxQuant, one of the most frequently used proteomics data analysis platforms, and its companion statistics program Perseus.
Jürgen Ehlers
Jürgen Ehlers (1929–2008) was a German theoretical physicist known for work on exact solutions of the Einstein field equations and the Newtonian limit of general relativity.
Jürgen Gauss
Jürgen Gauß, born 1960 in Konstanz, is a German theoretical chemist and professor at Mainz University, known for correlated NMR chemical-shift calculations and the CFOUR program.
Jürgen Gröll
Jürgen Gröll, also spelled Juergen Groll, is a German polymer chemist who holds the chair of Functional Materials in Medicine and Dentistry at the University of Würzburg.
Jürgen Moser
Jürgen Moser (1928–1999) was a mathematician born in Königsberg, East Prussia, who worked in dynamical systems, celestial mechanics, and partial differential equations, and is best known for the Kolmogorov–Arnold–Moser theory of stability in Hamiltonian systems.
Jürgen P. Rabe
Jürgen P. Rabe is a German experimental physicist, professor of the physics of macromolecules at Humboldt-Universität zu Berlin since 1994 and founding director of IRIS Adlershof.
Jürgen Rühe
Jürgen Rühe (born 1961 in Enniger, Germany) is a German polymer chemist who holds the interfaces chair at the University of Freiburg and won the 2002 DECHEMA Prize.
Juri Poutanen
Juri Poutanen is a Finnish astronomer, professor and director of Tuorla Observatory at the University of Turku, working on accreting black holes and X-ray polarimetry.
Juri Rappsilber
Juri Rappsilber is a biochemist known for cross-linking mass spectrometry, Einstein Professor of Bioanalytics at TU Berlin since 2011 and a group leader at the University of Edinburgh.
Juri Toomre
Juri Toomre is an astrophysicist at the University of Colorado Boulder and a JILA fellow since 1974, known for research on the Sun's interior through convection, dynamos, and helioseismology.
Jurin's law
Jurin's law gives the height a liquid rises or is depressed in a narrow capillary tube, inversely proportional to the tube radius, named for the English physiologist James Jurin.
Jurjen Ferdinand Koksma
Jurjen Ferdinand Koksma (1904–1964) was a Dutch mathematician who wrote the standard 1936 monograph on Diophantine approximation and proved a 1935 equidistribution theorem central to uniform distribution theory.
Jurriaan Huskens
Jurriaan Huskens, born 1968, is a Dutch supramolecular chemist and professor of molecular nanofabrication at the University of Twente, known for the molecular printboard and the 2007 KNCV Gold Medal.
Just another Gibbs sampler
Just another Gibbs Sampler (JAGS) is a free, open-source program for analyzing Bayesian hierarchical models using Markov Chain Monte Carlo simulation, created by statistician Martyn Plummer.
Just Stop Oil
Just Stop Oil (JSO) was a British climate group active from 2022 to 2025, campaigning against new UK oil, gas, and coal licensing through civil resistance.
Just-noticeable difference
The just-noticeable difference (JND), also called the difference threshold or difference limen, is the smallest stimulus difference a person can reliably detect, defined as detected 50 percent of the time.
Just-world fallacy
The just-world fallacy, also called the just-world hypothesis, is the belief that people get what they deserve, introduced by social psychologist Melvin J. Lerner in 1965.
Justification (epistemology)
Epistemic justification, also called epistemological justification, is the property that makes a belief properly held for the sake of truth, central to epistemology since Gettier's 1963 paper.
Justin C. Kasper
Justin C. Kasper is an experimental space plasma physicist who led the SWEAP instrument on NASA's Parker Solar Probe and won a 2010 PECASE award.
Justin D. Holmes
Justin D. Holmes is an Irish materials chemist, Professor of Nanochemistry at University College Cork, known for solution-grown silicon nanowires and for nanomaterials for energy and environmental applications.
Justin Du Bois
Justin Du Bois is an American organic chemist and Henry Dreyfus Professor at Stanford University, known for C–H functionalization methods and the synthesis of toxins such as batrachotoxin and saxitoxin.