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Comparative Sizes of Milky Way and Compact Galaxy

Comparative Sizes of Milky Way and Compact Galaxy
This illustration shows the comparative sizes of our Milky Way Galaxy and an ultracompact galaxy, which existed in the early universe. Although the compact galaxy is only a fraction of the size of our Milky Way, it contains the same number of stars. The small, dense galaxy could fit inside the central hub of our Milky Way.
  • Release Date
    April 29, 2008
  • Science Release
    Compact Galaxies in Early Universe Pack a Big Punch
  • Credits
    NASA, ESA, A. Feild (STScI), and P. van Dokkum (Yale University)

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Last Updated
Feb 17, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov