Science Fiction Words

noun a hypothetical or fictional being from outer space

adjective relating to or characteristic of beings from outer space

• Scientists have been studying the possibility of extraterrestrial life for decades.
• Have you ever wondered if there are extraterrestrial beings out there?
• I heard a conspiracy theory about extraterrestrials living among us.
• Her artistic style is so unique, it's like something extraterrestrial.

noun the whole body of things and phenomena observed or postulated: cosmos: such as the entire celestial cosmos

• Scientists study the vast expanse of the universe to better understand its origins and evolution.
• I love staring up at the stars and thinking about how huge the universe is.
• The universe is like, totally mind-blowing, dude.
• Her love for him felt as vast and infinite as the universe itself.