exoplanet

noun

exo·​plan·​et ˈek-sō-ˌpla-nət 

ˌek-sō-ˈpla-

: a planet orbiting a star that is not our sun

Examples of exoplanet in a Sentence

Recent Examples on the Web

Scheduled for launch in early 2027, the Henon CubeSat will be flown as a secondary passenger alongside the space agency’s PLATO telescope, which will be tasked with finding Earth-like exoplanets. — Eric Berger, ArsTechnica, 17 July 2026

There are a few possible reasons for the divergent observations, including the atmosphere responding to different temperature levels during its orbit or magnetic activity shifting in the exoplanet’s star. — Adam Kovac, Scientific American, 16 July 2026

What to read next Finding an atmosphere The discovery of the first exoplanet was confirmed just over 30 years ago. — Chelsea Gohd, Space.com, 16 July 2026

The exoplanet — so called because its a planet outside of our solar system — is named LhS 1140 b and is located about 49 light-years from Earth (300 trillion miles) in the constellation Cetus (the Whale). — Doyle Rice, USA Today, 16 July 2026

Word History

First Known Use

1992, in the meaning defined above

Rhymes for exoplanet

• pomegranate
• gannet
• granite
• planet
• intranet