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Sites similar to theplanets.org

Theplanets alternatives & similar sites

The Planets: Interesting Facts about the Eight Planets — 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
onotherplanets.com ↗	68 match 1 shared topics	Your Age on Other Planets	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aboveme.space ↗	64 match 1 shared topics	Whats Above Me?	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmocatalog.com ↗	64 match 1 shared topics	CosmoCatalog \| Your Interactive Guide to Stars and Astronomy	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmicgateways.com ↗	64 match 1 shared topics	Cosmic Gateways	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmoraastronomy.com ↗	64 match 1 shared topics	Cosmora Astronomy \| Explore the Universe	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
cosmosive.com ↗	64 match 1 shared topics	universe astronomy planetarium space explorer \| hello cosmos \| Cosmosive	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spottingscopeworld.com ↗	64 match 1 shared topics	Best Selling Spotting Scopes US - SPOTTING SCOPES	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
3i-atlas.live ↗	63 match 1 shared topics	ISO Tracker - Evidence-Based Interstellar Object Analysis	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3iatlas.news ↗	63 match 1 shared topics	3I/ATLAS Interstellar Comet Tracker \| Real-Time NASA Webb Observatory Data \| 3iatlas.news	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmobarometer.com ↗	63 match 1 shared topics	CosmoBarometer — Real-Time Planetary Conditions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
thexenologist.com ↗	63 match 1 shared topics	The Xenologist	en	space-and-astronomy Reaction Commerce	robotsllmsaihumans	emailphone	none
thinkaboutit-ufos.com ↗	63 match 1 shared topics	Think Aboutit UFOs \| The Craft. The Physics. The Pattern They Don't Want Mapped.	en	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	emailphone	none
armagh.space ↗	63 match 1 shared topics	Armagh Observatory & Planetarium \| County Armagh \| Northern Ireland	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
springcountdown.com ↗	63 match 1 shared topics	Spring Countdown - The Days Are Getting Longer	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
cosmicslothouse.com ↗	63 match 1 shared topics	Cosmic Slothouse: A Blog About Astronomy, Space, and Science	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmoscon.com ↗	63 match 1 shared topics	cosmoscon \| Ramblings from a citizen interested in Science and Politics	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.