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Earth Observation | SpaceAlpha — 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
eomoocs.org ↗	77 match 1 shared topics	Earth Observation MOOCs	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
star153.com ↗	70 match 1 shared topics	Star 153 — Observation Outpost	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
whittierblazars.com ↗	68 match 1 shared topics	VLBA Observations of TeV Blazars	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
earthapplicationsofspacetechnologyproject.com ↗	68 match 1 shared topics	Earth Applications of Space Technology Project	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
neofoundation.org ↗	68 match 1 shared topics	Near Earth Object Foundation	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
stellavistaobservatory.org ↗	68 match 1 shared topics	Stellar Vista Observatory	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
stellarvistaobservatory.org ↗	68 match 1 shared topics	Stellar Vista Observatory	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
earthrisespace.org ↗	68 match 1 shared topics	Earth Rise Space	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
7d-sol.com ↗	68 match 1 shared topics	Satellite Design Tool - LEO Observation Satellite Configuration	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
earthandspace.net ↗	67 match 1 shared topics	Earth and Space \| Home	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
kemoore.com ↗	67 match 1 shared topics	Earth and Space \| Home	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
stardustobservatory.com ↗	67 match 1 shared topics	Stardust Observatory	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
whereisthespacestation.com ↗	67 match 1 shared topics	Space Station Tracker	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
stardustobservatory.org ↗	67 match 1 shared topics	Stardust Observatory	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
starshed.net ↗	67 match 1 shared topics	Starshed Observatory	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
maxiq.space ↗	67 match 1 shared topics	MaxIQ Space International	en	space-and-astronomy Shopify	robots llmsaihumans	emailphone	none
mccarthyobservatory.org ↗	67 match 1 shared topics	John J. McCarthy Observatory	United States~ en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
starhouse-observatory.org ↗	67 match 1 shared topics	Starhouse Observatory	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.