Galaxy
A galaxy is a dense grouping of stars, held together by powerful gravitational attraction. Because of the extreme distance between galaxies, most of the lifeforms known to science were in Earth's home galaxy, the Milky Way. There was limited contact with objects, forces, and life from outside the Milky Way, however.

The mission insignia for Apollo 17 in the 20th century depicted a galaxy in the design. ()

By 2266, it was estimated that three trillion galaxies existed in the universe. ()

List of galaxies 
 Andromeda Galaxy
 Large Magellanic Cloud
 Messier 32
 Messier 110
 Milky Way Galaxy
 Small Magellanic Cloud
 Triangulum Galaxy
 NGC 2812
 Vernal Galaxy

See also 
 Galactic Wars
 Stellar cartography

External links

Celestial objects

de:Galaxie
fr:Galaxie
it:Galassia
ja:銀河
nl:Sterrenstelsel
sr:Галаксија
Galaxies