alien worlds
Distant inhabited spheres
Alien worlds are planets beyond our solar system, or more broadly, any celestial bodies imagined as hosting life or civilizations different from Earth's.
The phrase evokes science fiction imagery of strange landscapes and extraterrestrial beings: The probe transmitted images of alien worlds orbiting distant stars.
In figurative use, alien worlds can describe any unfamiliar realm or experience: Stepping into the trading floor felt like entering an alien world.
- astrobiologyStudy of cosmic organisms
- exoplanetPlanet outside our system
- extraterrestrialBeing from outer space
- little green menCartoonish alien stereotype
- tidally lockedRotation matches orbital period
Drake equation · terraforming · space colonization · Fermi paradox · space opera · interstellar · Goldilocks zone · biosignature · cosmic perspective · extremophile · planetary system · habitable zone · spectroscopy · space probe · panspermia · hyperspace · first contact · exomoon
- spacespace, sun, moon, stars, star
- sci-fiscience fiction, Star Wars, sci-fi, Blade Runner 2049, aliens
- exploration themesexploration, adventure tales, pioneering spirit, sea voyages, polar exploration
- space fictionscience fiction, spaceship, sci-fi, astronaut, space adventure
- unexplored placesdeep sea, unmapped, undiscovered, deep ocean, uncharted
- Alien Lifeextraterrestrial life, extraterrestrial intelligence, first contact, biosignatures, exobiology