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Definitions

galaxy

[gal-uhk-see] / ˈgæl ək si /


Example Sentences

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Through telescopes or long-exposure photography, however, they reveal spectacular details including glowing clouds of gas, dying stars, and stellar nurseries scattered throughout our galaxy.

From Science Daily • Jun. 3, 2026

M88 is classified as an active galaxy because a supermassive black hole at its center is actively consuming gas and dust.

From Science Daily • Jun. 1, 2026

By examining galaxies in such detail, researchers can better understand how travel through a galaxy cluster influences star formation and drives long-term evolutionary changes.

From Science Daily • Jun. 1, 2026

This occurs when a galaxy moves through the hot gas that fills a galaxy cluster.

From Science Daily • Jun. 1, 2026

The only way to clock the speed of a galaxy is by using the Doppler effect—the same principle used in state troopers’ radar guns.

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




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