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Project Atlantis alternatives & similar sites

The Atlantis Project — 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
cygnusproject.org ↗	71 match 1 shared topics	The Cygnus Project	en	space-and-astronomy Ghost	robotsllmsaihumans	emailphone	none
projectcerium.com ↗	68 match 1 shared topics	Project Cerium	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
projectphanes.com ↗	68 match 1 shared topics	Project Phanes	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
project1ceres.com ↗	67 match 1 shared topics	Project Ceres	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
projectanabella.com ↗	67 match 1 shared topics	Project AnaBella	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
projectphaethon.com ↗	67 match 1 shared topics	Project Phaethon	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
project-faster.com ↗	66 match 1 shared topics	Project FASTER - Project FASTER	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
projectblackecho.com ↗	66 match 1 shared topics	Project Black Echo	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
projectpixelorbital.com ↗	66 match 1 shared topics	Project Pixel Orbital	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
karmanproject.org ↗	66 match 1 shared topics	The Karman Project \| For a cooperative future in space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
carpathiansky.com ↗	66 match 1 shared topics	Carpathian Starry Sky - On the Project	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
brussels-planetarium.com ↗	66 match 1 shared topics	AstraLoom Observatory \| Planetarium Culture Project	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
project-tycho.com ↗	66 match 1 shared topics	Project Tycho — From orbit to the ocean floor	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
deepnowproject.com ↗	65 match 1 shared topics	THE DEEP NOW PROJECT: THIS MOMENT OF MIRACLES	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
projectdiana-eme.com ↗	65 match 1 shared topics	PROJECT DIANA: RADAR REACHES THE MOON - Home	en	space-and-astronomy Weebly	robotsllmsaihumans	emailphone	none
projectmora.com ↗	65 match 1 shared topics	Project Mora \| Moon Museum	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
atlasoftheuniverse.com ↗	64 match 1 shared topics	An Atlas of The Universe	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
projectphenomenon.com ↗	64 match 1 shared topics	Project Phenomenon — Experience the Space Between the Known and the Unknown	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.