Video: Discovering Galaxies

Full-length video:
Discovering Galaxies
Runtime: 13 min 46 sec
NOTE: The videos will open in their own window after they have downloaded.
Intro to Discovering Galaxies
Runtime: 1 min 22 sec
Featured topic
This segment focuses on the central topic of the movie.
Hubble Used a “Cepheid Variable” to Prove Andromeda is a Galaxy
Runtime: 5 min 57 sec
Myths versus realities
Common misconceptions are presented in these segments.
How Can We Observe Galaxies?
Runtime: 44 sec
Are All Galaxies the Same?
Runtime: 44 sec
These segments function like graphic organizers. They compare and contrast facts presented in the movie.
The Types of Galaxies
Runtime: 1 min 41 sec
Beauty shots
These short segments offer amazing images with interpretive text.
Stunning Spirals
Runtime: 1 min
Enormous Ellipticals
Runtime: 1 min 1 sec
Intriguing Irregulars
Runtime: 1 min 2 sec


These programs contain copyrighted material and should not be downloaded or used outside of this website. For further details, refer to the full copyright statement.


Produced by the Space Telescope Science Institute, Office of Public Outreach

All images, illustrations, and videos courtesy of NASA, ESA, and STScI except:

  • Milky Way panoramas courtesy of ESO/Y. Beletsky and ESO/Bruno Gilli
  • Photos of Edwin Hubble courtesy of Huntington Library
  • Andromeda Galaxy image courtesy of Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF
  • Photo of Henrietta Leavitt courtesy of American Institute of Physics, Emilio Segrè Visual Archives
  • M33, M94, NGC 55, M49, and M84 images courtesy of NOAO/AURA/NSF
  • NGC 6822 image courtesy of Local Group Galaxies Survey Team/NOAO/AURA/NSF
  • NGC 1232 image courtesy of ESO/P. Grosbøle
  • NGC 4449 image courtesy of Digital Sky Survey/AURA
  • NGC 1300 image courtesy of Hillary Mathis/NOAO/AURA/NSF
  • Small Magellanic Cloud image courtesy of F. Winkler/Middlebury College, the MCELS Team, and NOAO/AURA/NSF
  • NGC 55 color image courtesy of T. A. Rector/NOAO/AURA/NSF
  • Music courtesy of Associated Production Music

  • Written by Vanessa Thomas
  • Designed by John Godfrey

Video: Discovering Galaxies