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new planets

British  

plural noun

  1. the outer planets Uranus, Neptune, and (formerly) Pluto, only discovered comparatively recently

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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"Roman will discover tens of thousands of new planets outside our solar system. It will reveal billions of galaxies, thousands of supernovae and tens of billions of stars," she said.

From Barron's • Apr. 22, 2026

By studying the gas around this young star and watching carefully as the tiny dust grows over time, they hope to learn much more about where new planets come from and when.

From Space Scoop • Jul. 16, 2025

Since the environments in such disks set the conditions in which new planets form, any such planet may be rocky but quite unlike Earth in other aspects.

From Science Daily • Jun. 6, 2024

You were either going to have to add new planets or subtract things that are no longer planets.

From National Geographic • Feb. 16, 2024

This aroused the fury of his enemies, who ridiculed the idea of there being new planets; "for," they said, "to see these planets they must first be put inside the telescope."

From The Story of Great Inventions by Burns, Elmer Ellsworth

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