extrasolar

American  

[ek-struh-soh-ler] / ˌɛk strəˈsoʊ lər /

adjective

1. outside, or originating outside, the sun or the solar system.

---

extrasolar British  

/ ˌɛkstrəˈsəʊlə /

adjective

1. occurring or existing beyond the earth's solar system

---

Etymology

Origin of extrasolar

First recorded in 1885–90; extra- + solar ¹

Example Sentences

"The variability of extrasolar planets is just enormous," Muñoz said.

From Science Daily • Oct. 15, 2025

And unlike many extrasolar discoveries, this object was not found through indirect methods — the subtle wobbling of a star revealing the presence of an orbiting planet, for example.

From New York Times • Jul. 23, 2021

“We thought about whether others might look for transiting planets as we do but from an extrasolar perspective,” Heller says of his previous work.

From Scientific American • Jul. 1, 2021

In 1995, Mayor and his then-student Queloz made the first discovery of an extrasolar planet orbiting a Sun-like star.

From Nature • Oct. 8, 2019

Leave the solar system and start looking for an extrasolar Earthlike planet.”

From "Ready Player One: A Novel" by Ernest Cline