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Definitions

planetary

[plan-i-ter-ee] / ˈplæn ɪˌtɛr i /


Example Sentences

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Roman, however, will search largely unexplored areas of the Milky Way, offering a much broader view of planetary systems across our galaxy.

From Science Daily • Jun. 1, 2026

As telescopes become more powerful, astronomers continue discovering increasingly unusual planetary systems across the galaxy.

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

Anil Madhavapeddy, professor of planetary computing at Cambridge University, told the BBC that more than 100 research groups have accessed the tool.

From BBC • May 18, 2026

Kepler’s first law of planetary motion is simply this: A planet moves in an ellipse with the Sun at one focus.

From "Cosmos" by Carl Sagan




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