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A City on Mars — 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
celestialdynasty.org ↗	60 match 2 shared topics	Celestial Orión’s Belt (C.O.B.)	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
elanthealien.com ↗	60 match 2 shared topics	Élan	United States~ en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
mc2rocketry.com ↗	34 match 1 shared topics	Music City Missile Club > Introduction	en	space-and-astronomy DotNetNuke/DNN	robotsllmsaihumans	email phone	none
mc2rocks.com ↗	34 match 1 shared topics	Music City Missile Club > Introduction	en	space-and-astronomy DotNetNuke/DNN	robotsllmsaihumans	email phone	none
rabbitwithredgoggles.com ↗	34 match 1 shared topics	Rabbit with red goggles. Mission to Mars	en	space-and-astronomy Bitrix	robotsllmsaihumans	emailphone	none
aswinmanohar.com ↗	34 match 1 shared topics	Aswin Manohar	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cscaobs.org ↗	33 match 1 shared topics	Home - Marmot Observatory	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
cesra.net ↗	32 match 1 shared topics	CESRA: Community of European Solar Radio Astronomers -	en	space-and-astronomy WordPress	robots llmsaihumans	emailphone	none
astroalexandra.com ↗	32 match 1 shared topics	Astro Alexandra \| Space Communicator as seen on TikTok	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
ccnyplanetarium.org ↗	32 match 1 shared topics	CCNY Planetarium \| The City College of New York has a planetarium.	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
astramine.dev ↗	32 match 1 shared topics	Find spots worth mining on the Moon	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
astroforge.com ↗	32 match 1 shared topics	AstroForge	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
astrowards.com ↗	32 match 1 shared topics	AstroWards – AstroWards is a welcoming blog where readers explore astrophysics, general space science, and theoretical physics, discover new ideas, and connect with like-minded enthusiasts.	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
rascommunity.org ↗	32 match 1 shared topics	RAS Community Hosting	en	space-and-astronomy Joomla	robotsllmsaihumans	emailphone	none
astronomyedinburgh.org ↗	32 match 1 shared topics	Astronomy in Edinburgh - Astronomical Society of Edinburgh	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
beyondgravity.com ↗	32 match 1 shared topics	We help humanity explore the world and beyond. \| Beyond Gravity	en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
cbustudios.shop ↗	32 match 1 shared topics	Aliens On Universe	en	space-and-astronomy Shopify	robots llmsaihumans	emailphone	none
sextantbook.com ↗	32 match 1 shared topics	The Nautical Sextant \| A must-have work for enthusiasts on sextant construction, restoration, repair and adjustment	en	space-and-astronomy WordPress	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.