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Grey Hautaluoma
Headquarters, Washington
202-358-0668

Susan Hendrix
Goddard Space Flight Center, Greenbelt, Md.
301-286-7745

Ray Villard
Space Telescope Science Institute, Baltimore
410-338-4514

May 10, 2007
 
MEDIA ADVISORY : M07-51a
 
 
NASA Updates Plans for Hubble 'Ring Of Dark Matter' Briefing
 
 
GREENBELT, Md. - NASA will hold a media teleconference at 1 p.m. EDT on May 15 to discuss the strongest evidence to date that dark matter exists. This evidence was found in a ghostly ring of dark matter in the cluster CL0024+17, discovered using NASA's Hubble Space Telescope. The ring is the first detection of dark matter with a unique structure different from the distribution of both the galaxies and the hot gas in the cluster. The discovery will be featured in the June 20 issue of the Astrophysical Journal.

Briefing participants are:
-- Dr. Myungkook James Jee, associate research scientist, Johns Hopkins University, Baltimore
-- Dr. Richard White, astronomer, Space Telescope Science Institute, Baltimore
-- Dr. Richard Massey, postdoctoral scholar, California Institute of Technology, Pasadena
Reporters should contact Ray Villard at the Space Telescope Science Institute at 410-338-4514 prior to the media teleconference for the call in number and passcode. Audio for the briefing will stream live on the Internet at:

http://www.nasa.gov/newsaudio


At the start of the briefing, images and supporting graphics will be posted on the Web at:

http://www.nasa.gov/mission_pages/hubble/news/dark_matter_ring.html


For more information about the Hubble Space Telescope, visit:

http://www.nasa.gov/hubble
 

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