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Heavy Brain Space Blog – Space Science, Music & Ideas | Heavy Brain Space — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Space And Astronomy →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
humansinspacerightnow.com ↗	69 match 1 shared topics	Humans in Space Blog \| People in Space Right Now	en	space-and-astronomy	robots llmsaihumans	emailphone	partial · 8
4spacescience.com ↗	66 match 1 shared topics	4SpaceScience -- Search Space Science Data, News, Tools	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
danielides.com ↗	66 match 1 shared topics	Home & Contact - Danielides Space Science Consulting	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
avio.com ↗	66 match 1 shared topics	Avio – Advanced Space Propulsion & Aerospace Solutions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
crystalpalacespace.com ↗	66 match 1 shared topics	Crystal Palace Space: Exploring Astronomy, Space Tech & Cosmic Discoveries	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
esa.int ↗	65 match 1 shared topics	European Space Agency	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aris-space.ch ↗	65 match 1 shared topics	ARIS – Space & Rocket Projects	Switzerland en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
spacesystems.uk ↗	65 match 1 shared topics	Space Systems - Space Systems Ltd	United Kingdom en	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	emailphone	none
bayareaspace.org ↗	65 match 1 shared topics	Bay Area Space Ecosystem — SF & Silicon Valley Space Directory	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
bayareaspaceecosystem.com ↗	65 match 1 shared topics	Bay Area Space Ecosystem — SF & Silicon Valley Space Directory	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
visionpalacespace.com ↗	65 match 1 shared topics	Vision Palace Space: Exploring Astronomy, Cosmology, and Space Discoveries	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
astro-helio.ch ↗	65 match 1 shared topics	FHNW Institute for Data ScienceAstroinformatics and Heliophysics Group – Gruppe Astroinformatik und Sonnenphysik	Switzerland en	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	emailphone	none
star-walks.com ↗	65 match 1 shared topics	Spaceinterface – the human side of space tech	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
deepspaceinitiative.org ↗	65 match 1 shared topics	Deep Space Initiative \| Explore space opportunities today	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
houstonspacesociety.net ↗	65 match 1 shared topics	Houston Space Society – Official Website of the Houston Space Society	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
medisonspace.com ↗	65 match 1 shared topics	Medison Space – Energy. Intelligence. Exploration.	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
eusdc.org ↗	64 match 1 shared topics	European Space Design Competition	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
ssaihq.com ↗	64 match 1 shared topics	SSAI - Science Systems and Applications Inc.	en	space-and-astronomy	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.