Myth vs Reality: Galaxies Over Time

 

 

Produced by the Space Telescope Science Institute’s Office of Public Outreach.

 

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

 

·       NGC 6822 image courtesy of the Local Group Galaxies Survey Team/NOAO/AURA/NSF

·       Taurus constellation drawing from Firmamentum Sobiescianum sive Uranographia by Johannes Hevelius, courtesy of the United States Naval Observatory

·       NGC 4565 image courtesy of the European Southern Observatory

·       Small Magellanic Cloud image courtesy of F. Winkler/Middlebury College, the MCELS Team, and NOAO/AURA/NSF

 

Written by Vanessa Thomas

Designed by John Godfrey 

Music courtesy of Association Production Music

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 Bright teal lines separate the screen in half. Title. Myth versus Reality. Above the Myth side is a constellation map with a horned bull. On the Reality side is a dark sky with a bright white light. 

Text. Myth. Galaxies never change. 

Reality. Galaxies are continuously changing and evolving. Some changes, like those caused by galaxy collisions, happen slowly over a long timescale, and affect the entire galaxy. Others, like star explosions, occur very quickly, and affect small areas.