Trending Science Topics — September 2026
The 100 most-viewed science topics on Wikipedia, September 2026. Ranked by real-world attention. Top: Gregorian calendar. Data as of 26 October 2026.
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- September 2026 · Data as of 26 October 2026
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- 100 science topics — drawn from 12,391,362 articles Wikipedia recorded views for in this window
This counts a Wikipedia language edition, not a country's residents. 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
2,964,019
Total Views (September 2026)
1
Gregorian calendar
internationally accepted civil calendar, first used in 1582
113,966
views
views
2
human evolution
evolutionary process leading up to the appearance of anatomically modern humans
113,524
views
views
3
physics
study of matter and its motion, along with related concepts such as energy and force
104,316
views
views
4
tabby cat
domestic cat with a distinctive coat marked by stripes, dots, lines, or other patterns
103,469
views
views
5
misanthropy
general dislike of humanity
83,142
views
views
6
feminism
group of movements that come about defining, and defending women liberation and gender equity
76,134
views
views
7
Julian calendar
calendar introduced by Julius Caesar in 45 BC
67,362
views
views
8
geography of the United States
overview of the geography of the United States of America
62,739
views
views
9
tricolour cat
coat pattern in domestic cats
58,069
views
views
10
vibe coding
software development practice with AI assistance
54,679
views
views
11
homeopathy
system of pseudoscientific alternative medicine based on the doctrine of "like cures like"
53,530
views
views
12
Hellenistic period
period of Mediterranean history from 323 to 31 BC
52,162
views
views
13
demographics of India
Aspect of human geography in India
51,450
views
views
14
French Republican calendar
calendar
49,671
views
views
15
Ayurveda
pseudoscientific alternative medicine originating from India
46,923
views
views
16
demographics of Germany
demographics of country
46,876
views
views
17
Jihadism
Belief in one's internal struggle against one's own evil inclinations
46,594
views
views
18
logic
study of correct reasoning
44,401
views
views
19
tortoiseshell
two-color coat coloring found almost exclusively in female cats
41,716
views
views
20
Chinese calendar
lunisolar calendar
40,746
views
views
21
Islamic calendar
lunar calendar used by Muslims to determine religious observances
38,675
views
views
22
demographics of Ukraine
demographics of country
37,869
views
views
23
Apple Intelligence
artificial intelligence platform developed by Apple
36,275
views
views
24
Lebensraum
German "living space" ideas of settler colonialism (1890s–1940s)
32,847
views
views
25
semantics
study of meaning in language
32,507
views
views
26
Critical Role
American TTRPG web series
31,870
views
views
27
demographics of Israel
national demographics
31,399
views
views
28
Socratic method
type of dialog or debate
31,217
views
views
29
wheel of the year
annual cycle of seasonal festivals observed by many modern Pagans
31,089
views
views
30
chronology of the universe
history and future of the universe according to Big Bang cosmology
30,752
views
views
31
Roman calendar
calendar
29,422
views
views
32
timeline of human evolution
chronological outline of major events in the development of the human species
29,343
views
views
33
BCG vaccine
vaccine primarily used against tuberculosis
29,209
views
views
34
dispensationalism
Christian theology
28,191
views
views
35
Kinsey scale
social distribution of sexual orientation
26,328
views
views
36
critical sociology
philosophy that sociological understanding's primarily use should be social reform
26,010
views
views
37
hybrid warfare
type of war, warfare and a theory of military strategy
25,739
views
views
38
genetics
science of genes, heredity, and variation in living organisms
25,638
views
views
39
psychopathography of Adolf Hitler
Hypotheses about Adolf Hitler's mental state
25,564
views
views
40
cosmology
scientific study of the origin, evolution, and eventual fate of the universe
25,134
views
views
41
Alcoholics Anonymous
self-help organization
25,118
views
views
42
entomology
scientific study of insects
25,040
views
views
43
etymology science
study of the history of words, their origins, and how their form and meaning have changed over time
25,017
views
views
44
biotechnology
technologies directly involving biology; formerly or more narrowly the use of living systems and organisms to develop or make useful products
24,223
views
views
45
Altai Mountains
mountains in Russia, Kazakhstan, China, and Mongolia
23,379
views
views
46
biochemistry
study of chemical processes in living organisms
23,006
views
views
47
physiotherapy
is a medical specialty that aims to address the illnesses or injuries that limit a person's abilities to function in everyday lives
22,319
views
views
48
self-immolation of Aaron Bushnell
self-immolation of a 25-year-old U.S. serviceman
22,226
views
views
49
Geography of Russia
Overview of the geography of Russia
22,182
views
views
50
syntax
inner structure of sentences and the linguistic field that studies it
21,852
views
views
51
Pauli exclusion principle
quantum mechanical principle that two identical fermions cannot occupy the same quantum state simultaneously
21,111
views
views
52
backpropagation
optimization algorithm for artificial neural networks
21,080
views
views
53
natural language processing
field of computer science and linguistics
20,858
views
views
54
greenhouse effect
atmospheric heat retention
20,117
views
views
55
gradient descent
optimization algorithm
20,114
views
views
56
positron
subatomic particle with positive charge
20,050
views
views
57
PowerShell
cross-platform command-line interface and scripting language for system and network administration
19,690
views
views
58
astrophysics
science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena
19,487
views
views
59
creationism
religious belief that nature, and aspects such as the universe, Earth, life, and humans, originated with supernatural acts of divine creation
19,276
views
views
60
sleep deprivation
condition of not having enough sleep
19,230
views
views
61
palimpsest
manuscript page that's been used multiple times
19,111
views
views
62
Maya calendar
system of calendars used in pre-Columbian Mesoamerica
19,024
views
views
63
Today
American morning television program broadcast on NBC
18,453
views
views
64
Médecins Sans Frontières
international humanitarian medical non-governmental organisation
18,452
views
views
65
AlphaFold
software by DeepMind
17,628
views
views
66
COVID-19 vaccine
vaccine against SARS-CoV-2 coronavirus
17,594
views
views
67
polio vaccine
vaccine to prevent poliomyelitis
17,426
views
views
68
morphology
identification, analysis and description of the structure of a given language's morphemes and other linguistic units
17,351
views
views
69
phonetics
branch of linguistics that comprises the study of the sounds of human speech
16,987
views
views
70
ethology
scientific study of animal behavior
16,834
views
views
71
MMR vaccine
any of several combined vaccines against measles, mumps, and rubella
16,538
views
views
72
Geography of India
Overview of the geography of India
16,385
views
views
73
history of Rome
history of city of Rome and Roman civilization
16,357
views
views
74
Geography of Chile
Overview of the geography of Chile
16,006
views
views
75
sexology
scientific study of human sexuality
15,943
views
views
76
rabies vaccine
group of vaccines against infection of humans and animals with the rabies virus
15,825
views
views
77
de-extinction
process of creating an organism, which is either a member of, or resembles an extinct species, or breeding population of such organisms
15,647
views
views
78
Three Sisters
main agricultural crops of various Native American groups in North America
15,593
views
views
79
numismatics
study of currencies, coins and paper money
15,508
views
views
80
hydroelectricity
electricity generated by hydropower
15,459
views
views
81
ornithology
study of birds
15,454
views
views
82
Strava
fitness tracking app for iOS and Android
15,095
views
views
83
pharmacy
science that studies the chemical, pharmacological and pharmaceutical properties of drugs
14,799
views
views
84
Geography of Japan
Overview of the geography of Japan
14,762
views
views
85
Generations of Noah
genealogy of the sons of Noah and their dispersion into many lands after the Flood found in Genesis
14,408
views
views
86
control theory
branch of engineering and mathematics that deals with the behavior of dynamical systems with inputs, and how their behavior is modified by feedback
13,946
views
views
87
Geography of Canada
Overview of the geography of Canada
13,888
views
views
88
rule of law
doctrine that advocates that every citizen, including those in government, is subject to the law
13,877
views
views
89
geography of Taiwan
overview of the geography of Taiwan
13,556
views
views
90
hoodoo
tall, thin spire of rock that protrudes from the bottom of an arid drainage basin or badland
13,419
views
views
91
Nixon Shock
1971 decoupling of the US dollar from gold
13,414
views
views
92
engineered materials arrestor system
bed of engineered materials built at the end of a runway
13,258
views
views
93
five-year plans of India
economic policies of India
13,210
views
views
94
histology
study of the microscopic anatomy of cells and tissues of plants and animals
13,202
views
views
95
demographics of Iran
demographics of a country
13,075
views
views
96
Weimar Constitution
German constitution of 1919
13,059
views
views
97
philately
study of stamps and postal history and other related items
12,992
views
views
98
Deep Blue versus Garry Kasparov
pair of chess matches between Deep Blue and Kasparov
12,892
views
views
99
Robin Hobb bibliography
12,873
views
views
100
suicide prevention
umbrella term for the collective efforts to reduce the incidence of suicide, including reduction of risk factors as well as promotion of preventions and social support
12,797
views
views