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Center for Human Space Exploration – At University of Arizona's Biosphere 2 — 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
austspace.com.au ↗	68 match 1 shared topics	Australian Space Exploration Technologies	Australia en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
nasat.com ↗	67 match 1 shared topics	Unlocking the Secrets of Space Exploration at NASAT.com	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
starboundmatrix.com ↗	67 match 1 shared topics	Starbound Matrix \| Master Behaviors for Space Exploration	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
nasa777link.com ↗	67 match 1 shared topics	NASA777 : NASA 777 Ultimate Cosmic Space Exploration Mission Center	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
freshlinepapers.com ↗	67 match 1 shared topics	Fresh Line Papers - Space Exploration Platform	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mysecondavenue.com ↗	67 match 1 shared topics	Fresh Line Papers - Space Exploration Platform	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
naaca.com ↗	67 match 1 shared topics	Unlocking the Power of Space Exploration: NAACA's Vision	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
nasa-explorer.com ↗	67 match 1 shared topics	NASA Space Explorer - Discover the Universe	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
nasa77link.com ↗	67 match 1 shared topics	NASA77 : NASA 77 Cosmic Space Exploration Concept For Tech Future	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mixmaster3000.com ↗	66 match 1 shared topics	Space.com: NASA, Space Exploration and Astronomy News	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
deepspacezambia.com ↗	66 match 1 shared topics	DeepSpace Zambia \| Astronomy & Space Exploration	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
restoring.com ↗	66 match 1 shared topics	Space Exploration: Ventures Beyond Earth	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
wikiarchives.space ↗	66 match 1 shared topics	WikiArchives.Space — Free space exploration photo archive	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
springfieldspaceweek.com ↗	66 match 1 shared topics	Gateway STEM Center Springfield Space Week – Celebrating Space Exploration in Robertson County, Tennessee	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
stellarclubexpress.com ↗	66 match 1 shared topics	Stellar Club Express: Space Exploration and Astronomy Insights	United States~ en	space-and-astronomy Reaction Commerce	robotsllmsaihumans	emailphone	none
ncesse.org ↗	66 match 1 shared topics	National Center for Earth and Space Science Education (NCESSE)	United States~ en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
nasa888link.com ↗	66 match 1 shared topics	NASA888 : NASA 888 Grand Cosmic Space Exploration Mission Prosperity	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
terracvita.com ↗	66 match 1 shared topics	Explore the Vastness of Space with Our Landing Page \| Space exploration	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.