Trending Scientific Theories in Spain — September 2026
The 100 most-viewed scientific theories on Wikipedia, September 2026 (Spanish-language edition). Ranked by real-world attention. Top: Big Bang. Data as of 26 October 2026.
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- September 2026 · Data as of 26 October 2026
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- 100 scientific theories — drawn from 2,205,766 articles Wikipedia recorded views for in this window
This counts a Wikipedia language edition, not a country's residents — Measured from the Spanish-language Wikipedia edition — readers worldwide, not residents of Spain. Nothing here is capped or sampled: it is every view Wikipedia published for these articles in the window. Rows carrying a 📰 badge add news coverage from GDELT; entity names and types come from Wikidata. Looking for what one country read? That is what the world reads — a different, capped measurement.
Where this data comes from ›100
Ranked
98,048
Total Views (September 2026)
1
Big Bang
hypothetical begin of the Universe through expansion out of an infinitely small and infinitely dense state
14,060
views
views
2
anarchism
a philosophy, movement, and political ideology that holds that any government, like the state, is undesirable, unnecessary, and harmful
7,095
views
views
3
theory of relativity
two interrelated physics theories by Albert Einstein
6,532
views
views
4
Fermi paradox
apparent contradiction between the lack of evidence and high probability estimates for the existence of extraterrestrial civilizations
4,073
views
views
5
race
nonscientific human classification system primarily based on physical appearance
3,463
views
views
6
cell theory
scientific theory that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells
3,401
views
views
7
heliocentrism
astronomical model in which the Earth and planets revolve around a relatively stationary Sun at the center of the Solar System
3,042
views
views
8
spontaneous generation
disproven theory of life arising from nonliving matter
2,614
views
views
9
continental drift
movement of Earth's continents relative to each other
2,375
views
views
10
flat Earth
archaic conception of the Earth's shape
2,000
views
views
11
general relativity
standard and classical physics theory of gravity and space
1,963
views
views
12
Dyson sphere
hypothetical megastructure, originally described by Freeman Dyson
1,963
views
views
13
uncertainty principle
fundamental principle in quantum physics
1,871
views
views
14
special relativity
physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein
1,795
views
views
15
History of atomic theory
history of scientific theory that views matter as made up of atoms of chemical elements
1,587
views
views
16
accelerationism
political philosophy that the prevailing system of capitalism should be expanded in order to generate radical social change
1,576
views
views
17
Lamarckism
hypothesis that an organism can pass on characteristics that it has acquired through use or disuse during its lifetime to its offspring
1,532
views
views
18
functionalism
social science
1,464
views
views
19
infrared radiation
electromagnetic radiation with longer wavelengths than those of visible light
1,422
views
views
20
meritocracy
political system in which capital is assigned on the basis of competence
1,421
views
views
21
Bose–Einstein condensate
state of matter of a dilute gas of bosons cooled to temperatures very near absolute zero
1,407
views
views
22
Darwinism
theory of biological evolution driven by natural selection
1,362
views
views
23
spherical Earth
assertion that the Earth is (at least approximately) spherical
1,255
views
views
24
foco
theory of revolution by way of guerrilla warfare
1,225
views
views
25
phlogiston theory
superseded scientific theory about combustion
1,106
views
views
26
vitalism
discredited scientific hypothesis
1,102
views
views
27
Coriolis force
apparent or fictitious force on objects moving within a reference frame that rotates with respect to an inertial frame
1,080
views
views
28
boson
quantum system invariant by exchange of two identical instances
1,001
views
views
29
Einstein field equations
field equations in general relativity
941
views
views
30
modern evolutionary synthesis
early-20th-century scientific theory combining Darwinian evolution and Mendelian inheritance
850
views
views
31
contractualism
moral theory
777
views
views
32
miasma theory
obsolete medical theory about the transmission of disease through bad air
690
views
views
33
nutation
type of motion in astronomy. A component of the rotating motion of a planet under the influence of gravitational pull by moons, other planets or the central star
684
views
views
34
bricolage
construction or creation of a work from a diverse range of things that happen to be available, or a work created by such a process.
675
views
views
35
Aristotle's biology
theory of biology, grounded in systematic observation and collection of data, mainly zoological, embodied in Aristotle's books on the science
662
views
views
36
iron law of oligarchy
Political theory claiming that all organizations will eventually become oligarchic
642
views
views
37
Third International Theory
theory of governance proposed by Muammar Gaddafi
635
views
views
38
biogenesis
biological term that shows the view that living beings can develop only from other living beings
606
views
views
39
axial tilt
angle between the rotational axis and orbital axis of a body
539
views
views
40
kinetic theory
mathematical model explaining macroscopic properties of gases in microscopic terms
510
views
views
41
Copernican heliocentrism
concept that the Earth rotates around the Sun
505
views
views
42
germ theory of disease
prevailing theory about the cause of infectious diseases
498
views
views
43
constitutionalism
political and legal thought holding that government authority derives from and is limited by fundamental law, emphasizing the protection of rights
438
views
views
44
episcopal polity
form of church governance consisting of a hierarchy of bishops
437
views
views
45
trickle-down economics
economic theory
425
views
views
46
high-functioning autism
outdated term for types of autism without intellectual or verbal disability and cognitively "higher functioning" (with an IQ of ≥70); term that medical and autistic communities calling to stop using because it is simplistic and offensive
421
views
views
47
von Mises yield criterion
concept in continuum mechanics
420
views
views
48
Kurgan hypothesis
theory of Indo-European origin
406
views
views
49
Aristotelian physics
natural sciences as described by Aristotle
405
views
views
50
caloric theory
obsolete scientific theory of heat flow
403
views
views
51
Realism
international relations theory
392
views
views
52
insanity
abnormal mental or behavioral patterns
391
views
views
53
Brønsted–Lowry acid–base theory
chemical theory defining acids and bases by transfer of protons (hydrons)
385
views
views
54
Socialism in One Country
political theory by Joseph Stalin
363
views
views
55
probability axioms
axioms that are relevant to the probability theory
353
views
views
56
Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era
a political theory attributed to Xi Jinping, the General Secretary of the Chinese Communist Party
351
views
views
57
Schwarzschild black hole
328
views
views
58
Marx's theory of the state
political and economy theory created by Karl Marx
326
views
views
59
neuron doctrine
concept that the nervous system is made up of discrete individual cells
324
views
views
60
Gallicanism
the belief that popular civil authority—often represented by the monarchs' authority or the state's authority—over the Catholic Church is comparable to that of the Pope's
314
views
views
61
Dirac sea
ground state of a fermionic field; thought of as a "sea" of negative-energy states that have been all filled in, thus rendering the vaccum stable
308
views
views
62
Arrhenius acid–base theory
chemical theory that defines acids and bases by their effect on solvated proton concentration in aqueous solution
305
views
views
63
Regalism
doctrine and political practice, predominant in Europe during the 17th and 18th centuries, that defended the superiority of the king's power over the Catholic Church
303
views
views
64
Regalism
policies aimed at ensuring the superiority of the power of the Kings of Spain over the Pope of Rome in matters concerning the Catholic Church within the domains of their Monarchy
265
views
views
65
capability approach
economic theory
245
views
views
66
band theory
model of electronic structure in solids
237
views
views
67
Cassini Division
gap in the rings of Saturn
234
views
views
68
Fermi–Dirac statistics
behaviour of many identical fermions, particles with half-integer spin
231
views
views
69
libertarian communalism
libertarian socialist theory
224
views
views
70
Fresnel zone
region of space involved in radio propagation between a transmitting and receiving antenna
223
views
views
71
domino theory
theory concerning the influence of Communism
218
views
views
72
Bose-Einstein statistics
statistical description for the behaviour of bosons
211
views
views
73
neorealism
concept in international relations
209
views
views
74
Kerr black hole
Rotating black hole without electric charge
202
views
views
75
elite theory
theory of the state
197
views
views
76
Minkowski diagram
graph of space and time in special relativity
195
views
views
77
Natural delimitation between the Pacific and South Atlantic oceans by the Scotia Arc
thesis on the demarcation between the Pacific and Atlantic Oceans
191
views
views
78
post-Marxism
trend in political philosophy and social theory
190
views
views
79
palingenetic ultranationalism
theory concerning generic fascism
190
views
views
80
principal–agent problem
conflict of interest when one agent makes decisions on another's behalf
186
views
views
81
orthogenesis
obsolete biological hypothesis that organisms have an innate tendency to evolve towards some goal
154
views
views
82
SIR model
Compartmental model in epidemiology
151
views
views
83
triarchic theory of intelligence
theory of human intelligence formulated by Robert Sternberg
151
views
views
84
Madman theory
feature of Richard Nixon's foreign policy
148
views
views
85
optical aberration
phenomenon in astronomy
145
views
views
86
Boveri–Sutton chromosome theory
theory
142
views
views
87
material failure theory
theory
142
views
views
88
big lie
gross distortion or misrepresentation of the truth
140
views
views
89
Three Worlds Theory
Maoist interpretation and formulation of international relations
140
views
views
90
Love wave
type of seismic wave
137
views
views
91
race and intelligence
discussions and claims of differences in intelligence along racial lines
134
views
views
92
voting paradox (Condorcet)
Marquis de Condorcet's observation regarding times when voters' collective preferences are cyclic, even when voters' individual preferences are not
133
views
views
93
Stokes parameters
122
views
views
94
agonism
political theory that emphasizes the potentially positive aspects of certain forms of political conflict
116
views
views
95
Fresnel diffraction
diffraction
111
views
views
96
Conciliarism
14th-16th cent. movement for supremacy of church councils over popes
109
views
views
97
Interpretive Theory of Translation
theory in the field of translation studies formulated by Danica Seleskovitch
109
views
views
98
Turing pattern
how patterns in nature, such as stripes and spots, can arise naturally and autonomously from a homogeneous, uniform state
108
views
views
99
Penrose diagram
two-dimensional diagram that captures the causal relations between different points in spacetime
105
views
views
100
Jahn–Teller effect
mechanism of spontaneous symmetry breaking in molecular and solid-state systems
104
views
views