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Sites similar to stellarplanet.org

Stellarplanet alternatives & similar sites

Stellar Planet – Dr Hannah Wakeford — 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
spacescope.info ↗	66 match 1 shared topics	StellarScope	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aliensolarsystems.com ↗	66 match 1 shared topics	Exoplanets and Alien Solar Systems	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spainportugal-eps.org ↗	65 match 1 shared topics	Europlanet Iberia	en	space-and-astronomy Joomla	robotsllmsaihumans	emailphone	none
planetsintime.co.uk ↗	65 match 1 shared topics	Planets In Time	United Kingdom en	space-and-astronomy Shopify	robotsllmsaihumans	emailphone	none
noctuasky.com ↗	65 match 1 shared topics	Stellarium Web Online Star Map	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
exoplanet.eu ↗	64 match 1 shared topics	Encyclopaedia of exoplanetary systems	European Union en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3i-atlas.live ↗	64 match 1 shared topics	ISO Tracker - Evidence-Based Interstellar Object Analysis	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
allaboutplanets.com ↗	64 match 1 shared topics	All About Planets \| Planets, Moons, Solar System & Exoplanets	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spaceodt.net ↗	64 match 1 shared topics	Space ODT – Optical Deblurring Technologies	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spaceandplanetarynewswire.com ↗	64 match 1 shared topics	Space & Planetary News Wire – Use Our Intel	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
space-plane.org ↗	64 match 1 shared topics	Space Plane Corporation	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
space-plane.net ↗	64 match 1 shared topics	Space Plane Corporation	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
armagh.space ↗	64 match 1 shared topics	Armagh Observatory & Planetarium \| County Armagh \| Northern Ireland	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
100yss.org ↗	64 match 1 shared topics	100 Year Starship — Humanity's Interstellar Future	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3iatlas.news ↗	64 match 1 shared topics	3I/ATLAS Interstellar Comet Tracker \| Real-Time NASA Webb Observatory Data \| 3iatlas.news	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
100yss.org ↗	64 match 1 shared topics	100 Year Starship — Humanity's Interstellar Future	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
helioradar.com ↗	64 match 1 shared topics	HELIORADAR — Digitizing the planetary environment	en	space-and-astronomy	robots llmsaihumans	emailphone	none
rsacosmos.com ↗	64 match 1 shared topics	RSA Cosmos, global leader in digital planetariums	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.