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planets

NOUN

celestial body orbiting a star

Synonyms

STRONGEST

asteroid earth globe sphere world

STRONG

apple marble orb planetoid

WEAK

heavenly body luminous body terrene wandering star

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"That makes this an inside-out system, with a planet order of rocky-gaseous-gaseous-and then rocky again. Rocky planets don't usually form so far away from their home star," says Thomas.

From Science Daily • May 21, 2026

According to leading theories of planet formation, rocky planets form near their star while gas giants develop farther away where cooler conditions allow thick atmospheres to build up.

From Science Daily • May 21, 2026

"Much about how planets form and evolve is still a mystery. Finding clues like this one for solving this puzzle is precisely what Cheops set out to do."

From Science Daily • May 21, 2026

Current models suggest rocky planets form near stars because intense radiation strips away gas surrounding developing planetary cores.

From Science Daily • May 21, 2026

This explained the motion of the planets in the heavens with incredible accuracy; no longer could astronomers object that the heliocentric system was inferior to the geocentric one.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife