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Outer Space Central.com - The Sun, Black Holes, Active Galaxies, Supernovas, GRBs, Dark Matter, The Cosmic Web — 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
spinsgalaxycrew.com ↗	66 match 1 shared topics	Spin's Galaxy Crew: Exploring Space Adventures and Cosmic Tales	en	space-and-astronomy Reaction Commerce	robotsllmsaihumans	emailphone	none
crystalpalacespace.com ↗	65 match 1 shared topics	Crystal Palace Space: Exploring Astronomy, Space Tech & Cosmic Discoveries	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmicspinpro.com ↗	65 match 1 shared topics	Cosmic Spin Pro: Exploring Astrophysics and Space Discoveries	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
4search.space ↗	64 match 1 shared topics	4search.SPACE -- Search the Universe of Space Resources	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
blackwingspace.com ↗	64 match 1 shared topics	Blackwing Space \| American-Made Nanosatellites for Space 3.0	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3lementx.com ↗	64 match 1 shared topics	Innovative Engineering Solutions and Space Technology by Element X \| Element X	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3craftsaerospace.com ↗	64 match 1 shared topics	TRICRAFT .AEROSPACE Division \| Discover Space Solutions - Get Started	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
blackholepictures.com ↗	64 match 1 shared topics	Black Hole Pictures	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
ehp.be ↗	64 match 1 shared topics	EHP - Leader in Space Thermal Control	Belgium en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
aac-clyde.space ↗	64 match 1 shared topics	AAC Clyde Space \| Space Data & Satellite Constellation Providers	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
aac-clyde.space ↗	64 match 1 shared topics	AAC Clyde Space \| Space Data & Satellite Constellation Providers	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
backtospace.com ↗	64 match 1 shared topics	Back to Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mygalaxies.co.uk ↗	63 match 1 shared topics	My Galaxies	United Kingdom en	space-and-astronomy	robotsllmsaihumans	emailphone	none
avio.com ↗	63 match 1 shared topics	Avio – Advanced Space Propulsion & Aerospace Solutions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
blackholebunker.com ↗	63 match 1 shared topics	Black Hole Bunker – Gravitational and other Cosmic Anomaly Survival Resources & Supplies	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
above.space ↗	63 match 1 shared topics	ABOVE - Providing More Space in Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mcgillspace.com ↗	63 match 1 shared topics	McGill Space Group	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
blacktrianglewatchuk.com ↗	63 match 1 shared topics	Explore Black Triangle UAP & UFO Sightings in the UK	en	space-and-astronomy Weebly	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.