Definition of Galaxy

a group of many stars, along with gas, dust, and dark matter

Examples of Galaxy in a sentence

Our galaxy, the Milky Way, is made up of the sun, planets, asteroids, millions of stars, and other space junk.  🔊

When the door opened and two little green men with huge heads came stumbling toward him, James knew he had visitors from another galaxy.  🔊

The Hubble Telescope has taken some amazing photos of the galaxy.  🔊

Man will never be able to visit another galaxy until he masters travelling faster than the speed of light.  🔊

If we can successfully colonize the moon, perhaps we can start colonies on other planets in the galaxy someday.  🔊

Other words in the Outer Space category:

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