Isaac Arthur

Subscribers 873K

Videos 920

Views 165.6M

Channels Like Isaac Arthur

Isaac Arthur explores science, futurism, and space exploration with an emphasis on cosmology, space habitats, terraforming, and related sci-fi concepts. The channel presents deep-dives and explanatory content rather than quick tutorials or vlogs, drawing on science-based discussions and speculative futures. Uploads span a broad range of topics from exoplanet habitats and interstellar propulsion to alien life theories, with an average of 920 videos since joining in 2012, and an average of about 40.2K views per video among recent uploads. The channel totals around 873K subscribers and 165.6M total views.

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Similar Channels

We found 48 YouTube channels similar to Isaac Arthur

#1

Kyplanet

86% relevance

Subscribers 112K

Videos 208

Views 11.3M

Appearances 9

SERP 100%

Similarity 76%

exoplanet habitats space colonization habitable exoplanets potential

Shares a strong focus on exoplanet habitats, space colonization, and the potential of habitable exoplanets (high search overlap with Isaac Arthur) but differs in content depth and presentation style (86% overall match with 76% content similarity).

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#2

Cool Worlds view on YouTube

79% relevance

Subscribers 1.1M

Videos 261

Views 109.6M

Appearances 10

SERP 76%

Similarity 80%

interstellar travel concepts advanced propulsion artificial gravity space

Aligns on interstellar travel concepts, advanced propulsion, and artificial gravity topics; high search overlap but content diverges in delivery and focus, yielding 79% match with 80% content similarity.

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Kurzgesagt – In a Nutshell YouTube channel thumbnail

#3

Kurzgesagt – In a Nutshell view on YouTube

74% relevance

Subscribers 25.1M

Videos 349

Views 3.6B

Appearances 14

SERP 79%

Similarity 70%

space colonization extraterrestrial life theories terraforming and biospheres

Covers space colonization, extraterrestrial life theories, and terraforming themes, sharing audience interests (high search overlap) while maintaining a distinct animated explainer style (74% match; 79% search, 70% content).

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PBS Space Time YouTube channel thumbnail

#4

PBS Space Time view on YouTube

72% relevance

Subscribers 3.4M

Videos 436

Views 528.9M

Appearances 12

SERP 66%

Similarity 76%

interstellar travel concepts artificial gravity space interstellar propulsion concepts

Explores interstellar travel concepts, artificial gravity, and propulsion ideas, overlapping in searches with Isaac Arthur though content differs in format and depth (72% match; 66% search, 76% content).

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John Michael Godier YouTube channel thumbnail

#5

John Michael Godier view on YouTube

67% relevance

Subscribers 491K

Videos 667

Views 117.0M

Appearances 7

SERP 50%

Similarity 79%

exoplanet habitats extraterrestrial life theories space habitats design

Similar on exoplanet habitats and space habitats design, with strong audience interest in alien life theories, but varies in presentation and emphasis (67% match; 50% search, 79% content).

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Insane Curiosity YouTube channel thumbnail

#6

Insane Curiosity view on YouTube

65% relevance

Subscribers 620K

Videos 1.9K

Views 108.8M

Appearances 8

SERP 49%

Similarity 76%

interstellar travel concepts space colonization astrobiology life in space

Shares interstellar travel concepts and space colonization topics plus astrobiology life in space, reflecting audience alignment though content style differs (65% match; 49% search, 76% content).

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Content Landscape

Top competitors include Cool Worlds (79% match, 1.1M subscribers) and Kurzgesagt – In a Nutshell (74% match, 25.1M subscribers). These channels share overlapping queries with Isaac Arthur such as interstellar travel concepts, space colonization, terraforming and biospheres, extraterrestrial life theories, and advanced propulsion. Kyplanet (86% match, 112K subscribers) also aligns on exoplanet habitats and space colonization. PBS Space Time (72% match, 3.4M subscribers) and John Michael Godier (67% match, 491K subscribers) further overlap on exoplanet habitats, space habitats design, and astrobiology topics. Isaac Arthur sits between micro and mega channels in subscribers, with the biggest competitors like Kurzgesagt and Cool Worlds substantially larger, while smaller channels like Kyplanet align closely on core science-future space topics.

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Video Highlights

Didn't Make the Cut

42 additional channels that were close

Rank	Relevance	Channel	Similarity	Subscribers	SERP	Appearances
#7	64%	Fraser Cain	75%	489K	49%	9
#8	64%	StarTalk	73%	5.4M	50%	8
#9	61%	Real Engineering	69%	5.0M	49%	4
#10	59%	Spacedock	80%	467K	28%	7
#11	59%	Astrum	73%	2.8M	38%	6
#12	59%	Cosmic Echo	78%	51.1K	30%	3
#13	58%	Xandros	83%	57.7K	21%	2
#14	57%	NASA	71%	12.7M	36%	7
#15	57%	Event Horizon	79%	332K	24%	2
#16	57%	What If	75%	8.8M	29%	8
#17	55%	Destiny	79%	2.0M	20%	3
#18	55%	smallstars	76%	78.7K	24%	2
#19	55%	The Overview Effekt	80%	155K	17%	4
#20	55%	Big Think	73%	8.6M	28%	3
#21	54%	Kyle Hill	76%	2.8M	21%	2
#22	54%	BRIGHT SIDE	74%	44.7M	24%	5
#23	53%	Astrum Extra	78%	276K	17%	2
#24	53%	Stargaze	76%	578K	20%	1
#25	53%	Anton Petrov	76%	1.6M	19%	3
#26	53%	DamiLee	77%	2.3M	16%	2
#27	53%	NASA Astrobiology	75%	26.4K	19%	4
#28	53%	Merkarenicus	77%	1.7K	16%	1
#29	53%	Future City Music	74%	51K	20%	4
#30	52%	NASA's Ames Research Center	73%	149K	22%	3
#31	52%	Scott Manley	76%	1.8M	16%	2
#32	52%	David Shapiro	70%	189K	26%	2
#33	52%	Astron Era	70%	1.5K	24%	2
#34	51%	SciMind	73%	21.5K	19%	2
#35	51%	The Space Race	73%	712K	18%	5
#36	51%	Urban Planner Explained	66%	50.7K	29%	3
#37	51%	Science Time	74%	1.1M	17%	6
#38	50%	High On Design	71%	1.7K	19%	2
#39	50%	Science Workshop	73%	12.7K	16%	1
#40	50%	California Academy of Sciences	64%	246K	29%	2
#41	50%	GE Aerospace	67%	104K	23%	2
#42	49%	The Royal Institution	71%	1.7M	17%	5
#43	49%	Progress - Science Documentaries	71%	295K	17%	2
#44	49%	Gurunay	68%	2.5K	20%	1
#45	48%	Archaeosoup	70%	30.1K	16%	1
#46	48%	Richard J Murphy	66%	346K	21%	2
#47	47%	Simple Paint	67%	346K	16%	1
#48	45%	TEDx Talks	64%	44.2M	17%	5

Search Queries Used

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Frequently Asked Questions

Which YouTube channels are most similar to Isaac Arthur?

Kyplanet — 86% match, 112K subscribers; Cool Worlds — 79% match, 1.1M subscribers; Kurzgesagt – In a Nutshell — 74% match, 25.1M subscribers. All three channels produce science-focused content with an emphasis on space, physics, and futurism, and they regularly publish informational videos intended to explain complex concepts to a broad audience.

What type of content does Isaac Arthur make?

Isaac Arthur creates long-form science and futurism videos about space exploration, alien life, physics, the Fermi paradox, and related topics, as indicated by video titles like 5 Sci-Fi Fantasies That Could Soon Become Reality, Boron Based Life – Aliens of the Crystal Deserts, and Panspermia: Could Alien Comets Be Seeding Life Through the Universe? He averages about 40.2K views per video and uploads on a weekly basis.

How do we determine which channels are similar to Isaac Arthur?

We analyze Isaac Arthur's recent videos, generate topic-relevant search queries, check YouTube search results, and compare the meaning of each channel's content to measure similarity. The result is a ranked list sorted by SERP overlap, semantic similarity, and search appearances.

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