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Home | Advance Human Spaceflight — 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
leonidspace.com ↗	68 match 1 shared topics	Home \| Leonid Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
avio.com ↗	68 match 1 shared topics	Avio – Advanced Space Propulsion & Aerospace Solutions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
memorialspaceflight.com ↗	67 match 1 shared topics	Celestis: Memorial Spaceflights – Send Ashes Into Space	en	space-and-astronomy	robotsllmsaihumans	email phone	none
florisweijand.com ↗	67 match 1 shared topics	Floris Weijand – Engineering movement, from space systems to software	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
leo-space.com ↗	67 match 1 shared topics	Home \| LEOSPACE	en	space-and-astronomy Storyblok	robotsllmsaihumans	emailphone	none
c4space.com.au ↗	67 match 1 shared topics	C4 Space	Australia en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
australiainspace.com.au ↗	67 match 1 shared topics	Home - Australia in Space	Australia en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
miloinstitute.org ↗	67 match 1 shared topics	Home \| Milo Space Science Institute	en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
aavso.org ↗	67 match 1 shared topics	Home \| aavso	United States~ en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
aatc.tech ↗	66 match 1 shared topics	About - AATC Space Science and Education	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aadyah.com ↗	66 match 1 shared topics	AADYAH Aerospace \| homePage	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
cscec.io ↗	66 match 1 shared topics	CSCEC \| Equal access to space for humanity	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
brandoinspace.com ↗	66 match 1 shared topics	Brando Higgins - Brando in Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	full · 16
aatrg.org ↗	66 match 1 shared topics	AATRG — Advanced Astronaut Training & Research Group	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
leokovatch.com ↗	66 match 1 shared topics	Leo Kovatch - Aerospace Engineer	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
bringingcolumbiahome.com ↗	66 match 1 shared topics	Bringing Columbia Home – Remembering a Lost Space Shuttle and Her Crew	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
simpsonaerospace.com ↗	66 match 1 shared topics	Home - Simpson Aerospace	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
a1rocketry.com ↗	66 match 1 shared topics	Home \| A1 Rocketry	en	space-and-astronomy Wix Wix Stores	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.