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Unlocking the Power of Space Exploration: Insights from kh4.org — 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
space.com ↗	65 match shared topic	Space.com: NASA, Space Exploration and Astronomy News	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
l5development.com ↗	65 match shared topic	A privately funded, for profit, commercial space exploration and development program - L5Development.com	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacecolonists.org ↗	65 match shared topic	Home Page - SpaceColonists.org	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
collectspace.com ↗	65 match shared topic	collectSPACE \| where space exploration meets pop culture	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
esa.int ↗	60 match shared topic	European Space Agency	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacetourismhq.com ↗	60 match shared topic	Space Tourism HQ LLC	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
hubblesite.org ↗	60 match shared topic	Hubble Space Telescope - NASA Science	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
astronomy.com ↗	60 match shared topic	Astronomy Magazine: Space News, Observing, Planets, Galaxies	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
affordablespaceflight.com ↗	60 match shared topic	Affordable Space Flight - Getting to Orbit at an Affordable Price	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
virgingalactic.com ↗	60 match shared topic	Virgin Galactic Spaceflight Expeditions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aerospacetv.com ↗	60 match shared topic	Aerospace TV	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacedaily.com ↗	60 match shared topic	Space Daily — Space, science, and the human mind. Since 1995.	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
isaraerospace.com ↗	60 match shared topic	Home - Isar Aerospace	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
nss.org ↗	60 match shared topic	NSS National Space Society	en	space-and-astronomy WordPress	robots llmsaihumans	emailphone	none
spaceweatherlive.com ↗	60 match shared topic	SpaceWeatherLive.com \| Real-time data and plots auroral activity \| SpaceWeatherLive.com	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
axiomspace.com ↗	60 match shared topic	Axiom Space — World’s First Commercial Space Station	en	space-and-astronomy Webflow	robotsllmsaihumans	emailphone	none
imo.net ↗	60 match shared topic	IMO \| International Meteor Organization	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
spacecenter.org ↗	60 match shared topic	Space Center Houston \| Bringing people & space closer together	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.