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Planetary Science Institute | Discovery & Public Education in Planetary Science — 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 Science →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
sciencetimes.com ↗	60 match shared topic	Sciencetimes	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
lsst.org ↗	60 match shared topic	Rubin Observatory \| Opening a digital window for discovery of the dynamic universe.	en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
aeronomie.be ↗	60 match shared topic	Home \| Royal Belgian Institute for Space Aeronomy	Belgium en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
dias.ie ↗	60 match shared topic	DIAS – DIAS 2025 – 86 years of Discovery	Ireland en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
usap.gov ↗	60 match shared topic	The USAP Portal: Science and Support in Antarctica - Welcome to the United States Antarctic Program Portal	en	science	robotsllmsaihumans	emailphone	none
mander.xyz ↗	60 match shared topic	Mander - An instance dedicated to nature and science.	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	full · 20
cosmic.institute ↗	60 match shared topic	the cosmic institute	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
winchestersciencecentre.org ↗	60 match shared topic	Winchester Science Centre \| Home	en	science	robotsllmsaihumans	emailphone	none
iau.org ↗	55 match shared topic	Home	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
seti.org ↗	55 match shared topic	Home	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
templetonprize.org ↗	55 match shared topic	The Templeton Prize I Celebrating Scientific & Spiritual Curiosity	en	science WordPress	robotsllmsaihumans	emailphone	none
enkaliens.com ↗	55 match shared topic	Aliens Index Page	en	science	robotsllmsaihumans	emailphone	none
almaobservatory.org ↗	55 match shared topic	In search of our cosmic origins \| ALMA Observatory	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
setileague.org ↗	55 match shared topic	The SETI League: Searching for Extra-Terrestrial Intelligence	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosine.eu ↗	55 match shared topic	Measurement Systems for Space and Planet \| cosine	European Union en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
webexhibits.org ↗	55 match shared topic	Webexhibits	en	science	robotsllmsaihumans	emailphone	none
earthlights.org ↗	55 match shared topic	Earthlights: International Earthlight Alliance	en	science	robotsllmsaihumans	emailphone	none
aliens.courses ↗	55 match shared topic	AliensCourses — Alien Studies & Learning	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.