Zoom in on Abell 1689

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This video zooms in on the galaxy cluster Abell 1689. Overlaid in purple is the distribution of dark matter in the galaxy cluster. The distribution of normal and dark matter in the lens, the relative geometry of the lens and distant galaxies behind the cluster, and the effect of dark energy on the geometry of the universe, together explain the distorted shapes of some of the galaxies visible here. Astronomers are able to use this relationship to probe the properties of dark energy.

Credit:

NASA, ESA, ESO/Digitized Sky Survey 2, E. Jullo (JPL/LAM), P. Natarajan (Yale) and J-P. Kneib (LAM). Music: John Dyson (from the album "Moonwind"). Acknowledgment: Davide De Martin

About the Video

Id:heic1014a
Release date:19 August 2010, 20:00
Related releases:heic1014
Duration:50s

About the Object

Name:Abell 1689
Type:• X - Galaxies Images/Videos
• X - Cosmology Images/Videos
• X - HD Videos

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