ESOcast 100 Light: Dark Matter Less Influential in Early Universe (4K UHD)
Channel: European Southern Observatory (ESO)
Date: 2017-03-15

New observations from ESO's Very Large Telescope have revealed that the outer parts of massive disc galaxies 10 billion years ago were rotating less quickly than the spiral galaxies, like the Milky Way, that we see today. This ESOcast Light summarises the important points of this discovery and the significance of dark matter, and how it is distributed.

The video is available in 4K UHD.

The ESOcast Light is a series of short videos bringing you the wonders of the Universe in bite-sized pieces. The ESOcast Light episodes will not be replacing the standard, longer ESOcasts, but complement them with current astronomy news and images in ESO press releases.

More information and download options: http://www.eso.org/public/videos/eso1709a/

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Credit:
ESO

Editing: Herbert Zodet.   
Web and technical support: Mathias André and Raquel Yumi Shida.  
Written by: Thomas Barratt, Lauren Fuge, Oana Sandu & Richard Hook.  
Music: Jennifer Athena Galatis.   
Footage and photos: ESO, The Illustris Project (visualization by Dylan Nelson), L. Calçada and F. Char.  
Directed by: Herbert Zodet.   
Executive producer: Lars Lindberg Christensen.