Olbers' paradox

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Olbers' paradox

Quality:

Olbers's paradox - cosmological contradiction between the observed darkness of the night sky and a static universe model. Article “Olbers' paradox” in English Wikipedia has 44.7 points for quality (as of July 1, 2026). The article contains 22 references and 12 sections.

This article has the best quality in Japanese Wikipedia. However, this article is the most popular in English version.

In June 2026 the article “Olbers' paradox” was edited by 4 authors in English Wikipedia and written by 5 authors in all languages.

Since the creation of article “Olbers' paradox”, its content was written by 300 registered users of English Wikipedia and edited by 1210 registered Wikipedia users in all languages.

The article is cited 166 times in English Wikipedia and cited 859 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #389 in January 2003
  • Global: #597 in September 2001

The highest popularity rank from 2008:

  • Local (English): #1540 in August 2014
  • Global: #5868 in August 2014

There are 37 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1Japanese (ja)
オルバースのパラドックス
51.0271
2English (en)
Olbers' paradox
44.7154
3Vietnamese (vi)
Nghịch lý Olbers
34.5914
4German (de)
Olberssches Paradoxon
34.0331
5French (fr)
Paradoxe d'Olbers
26.3163
6Chinese (zh)
奧伯斯佯謬
26.2192
7Estonian (et)
Fotomeetriline paradoks
24.3275
8Russian (ru)
Фотометрический парадокс
23.5306
9Spanish (es)
Paradoja de Olbers
21.4508
10Hebrew (he)
הפרדוקס של אולברס
20.6384
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Olbers' paradox" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Olbers' paradox
2 600 870
2German (de)
Olberssches Paradoxon
343 210
3Japanese (ja)
オルバースのパラドックス
329 719
4Russian (ru)
Фотометрический парадокс
288 846
5Spanish (es)
Paradoja de Olbers
279 447
6Italian (it)
Paradosso di Olbers
233 173
7French (fr)
Paradoxe d'Olbers
194 764
8Polish (pl)
Paradoks Olbersa
167 648
9Chinese (zh)
奧伯斯佯謬
112 822
10Portuguese (pt)
Paradoxo de Olbers
95 484
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "Olbers' paradox" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Olbers' paradox
4 836
2Russian (ru)
Фотометрический парадокс
2 016
3German (de)
Olberssches Paradoxon
817
4Japanese (ja)
オルバースのパラドックス
754
5French (fr)
Paradoxe d'Olbers
552
6Italian (it)
Paradosso di Olbers
493
7Chinese (zh)
奧伯斯佯謬
387
8Spanish (es)
Paradoja de Olbers
337
9Polish (pl)
Paradoks Olbersa
230
10Portuguese (pt)
Paradoxo de Olbers
156
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Olbers' paradox" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Olbers' paradox
300
2German (de)
Olberssches Paradoxon
158
3French (fr)
Paradoxe d'Olbers
95
4Italian (it)
Paradosso di Olbers
65
5Russian (ru)
Фотометрический парадокс
61
6Spanish (es)
Paradoja de Olbers
56
7Hungarian (hu)
Olbers-paradoxon
48
8Hebrew (he)
הפרדוקס של אולברס
45
9Japanese (ja)
オルバースのパラドックス
36
10Dutch (nl)
Paradox van Olbers
36
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "Olbers' paradox" with the highest AI in June 2026
#LanguageAI awardRelative AI
1English (en)
Olbers' paradox
4
2Arabic (ar)
مفارقة أولبرز
1
3Azerbaijani (az)
Olbers paradoksu
0
4Catalan (ca)
Paradoxa d'Olbers
0
5Czech (cs)
Olbersův paradox
0
6German (de)
Olberssches Paradoxon
0
7Esperanto (eo)
Paradokso de Olbers
0
8Spanish (es)
Paradoja de Olbers
0
9Estonian (et)
Fotomeetriline paradoks
0
10Basque (eu)
Olbersen paradoxa
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Olbers' paradox" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Olbers' paradox
166
2Swedish (sv)
Olbers paradox
85
3Ukrainian (uk)
Фотометричний парадокс
85
4Chinese (zh)
奧伯斯佯謬
63
5Italian (it)
Paradosso di Olbers
53
6Persian (fa)
پارادوکس اولبرس
49
7Arabic (ar)
مفارقة أولبرز
47
8Norwegian (no)
Olbers’ paradoks
35
9Azerbaijani (az)
Olbers paradoksu
34
10Japanese (ja)
オルバースのパラドックス
33
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
مفارقة أولبرز
azAzerbaijani
Olbers paradoksu
caCatalan
Paradoxa d'Olbers
csCzech
Olbersův paradox
deGerman
Olberssches Paradoxon
enEnglish
Olbers' paradox
eoEsperanto
Paradokso de Olbers
esSpanish
Paradoja de Olbers
etEstonian
Fotomeetriline paradoks
euBasque
Olbersen paradoxa
faPersian
پارادوکس اولبرس
fiFinnish
Olbersin paradoksi
frFrench
Paradoxe d'Olbers
glGalician
Paradoxo de Olbers
heHebrew
הפרדוקס של אולברס
huHungarian
Olbers-paradoxon
idIndonesian
Paradoks Olbers
itItalian
Paradosso di Olbers
jaJapanese
オルバースのパラドックス
koKorean
올베르스의 역설
ltLithuanian
Olberso paradoksas
nlDutch
Paradox van Olbers
nnNorwegian (Nynorsk)
Olbers-paradokset
noNorwegian
Olbers’ paradoks
plPolish
Paradoks Olbersa
ptPortuguese
Paradoxo de Olbers
roRomanian
Paradoxul lui Olbers
ruRussian
Фотометрический парадокс
skSlovak
Olbersov paradox
slSlovenian
Olbersov paradoks
svSwedish
Olbers paradox
thThai
ปฏิทรรศน์ของอ็อลเบิร์ส
trTurkish
Olbers paradoksu
ukUkrainian
Фотометричний парадокс
urUrdu
اولبرز پیراڈاکس
viVietnamese
Nghịch lý Olbers
zhChinese
奧伯斯佯謬

Popularity rank trends

Best Rank English:
#1540
08.2014
Global:
#5868
08.2014

AI rank trends

Best Rank English:
#389
01.2003
Global:
#597
09.2001

Local popularity rank history

Global popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Olbers's paradox from Wikipedia articles about Edgar Allan Poe, List of paradoxes, Heinrich Wilhelm Olbers, Thomas Digges and The Five Ages of the Universe. Whereas reading the article about Olbers's paradox people most often go to Wikipedia articles on Heat death paradox, Heinrich Wilhelm Olbers, Horizon problem, List of paradoxes and Redshift.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information