119 entries under space topic. ×
| outer planets(noun, system, cosmos) | |
| perigee(noun, name, cosmos) | |
| plane of the ecliptic(noun, name, cosmos) | |
| planetary nebula(noun, name, cosmos) | |
| planetoid(noun, name, cosmos) | |
| pluto(noun, name, cosmos) | |
| pole star(noun, name, cosmos) | |
| quarter moon(noun, name, cosmos) | |
| quasar(noun, name, cosmos) | |
| radiant(noun, name, cosmos) | |
| red dwarf(noun, name, cosmos) | |
| red giant star(noun, name, cosmos) | |
| roche limit(noun, name, cosmos) | |
| rocket(noun, name, cosmos) | |
| satellite(noun, name, cosmos) | |
| saturn(noun, name, cosmos) | |
| shooting star(noun, name, cosmos) | |
| solar system(noun, name, cosmos) | |
| space exploration(noun, name, cosmos) | |
| space station(noun, name, cosmos) |
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| APA | Smart Define. (2016). astronomy thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/astronomy/thesaurus/narrower |
| Chicago | Smart Define. 2016. "astronomy thesaurus" https://smartdefine.org/astronomy/thesaurus/narrower (accessed September 26, 2026). |
| Harvard | Smart Define 2016, astronomy thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/astronomy/thesaurus/narrower>. |
| MLA | Smart Define. "astronomy thesaurus" 21 January 2016. Web. 26 September 2026. <https://smartdefine.org/astronomy/thesaurus/narrower> |