planetary

Example Sentences

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By examining entirely different populations of stars and planets across the Milky Way, Roman could greatly expand these studies and help reveal how common planetary systems like our own really are.

From Science Daily • Jun. 1, 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

Other possible explanations for asteroid activity include rotational breakup, gravitational tidal forces during close planetary encounters and the release of trapped gases.

From Science Daily • May 14, 2026

Many years later, Kepler came upon his third and last law of planetary motion, a law that relates the motion of various planets Kepler’s second law: A planet sweeps out equal areas in equal times.

From "Cosmos" by Carl Sagan