The dark "unknown" matter....

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Here is an extract from an interesting press release from NASA

Chandra observatory that talks about the dark "unknown" matter that

forms the universe...

 

Our Alwars referred to this "unknown dark" matter as "Kannan enrum

karun deivam" or "kAr mugil vaNNan" long long time ago.....!

 

 

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Megan Watzke

Chandra X-ray Observatory Center, CFA, Cambridge, Mass.

(Phone: 617/496-7998)

 

RELEASE: 01-180

 

CHANDRA PROBES NATURE OF DARK MATTER

 

Astronomers have shed new light on dark matter, the

invisible and unknown material that comprises most of the

Universe.

 

Using NASA's Chandra X-ray Observatory, scientists have

precisely determined the distribution of dark matter in a

distant galaxy cluster. These new measurements serve to

narrow the field of candidates that explain this puzzling

element.

 

John Arabadjis and Mark Bautz of the Massachusetts Institute

of Technology (MIT) in Cambridge, Mass., and Gordon Garmire

of Pennsylvania State University (Penn State) in University

Park, announced their results today at the "Two Years of

Science with Chandra" symposium in Washington. Their

observations enabled them to trace the distribution of dark

matter in the galaxy cluster EMSS 1358+6245.

 

Previous evidence from radio, optical and X-ray observations

convinced astronomers that most of the matter in the universe

is in some dark, as yet undetected, form that makes its

presence felt only through gravity. "The new Chandra

observations are providing new clues about the nature of this

mysterious stuff,'' said Bautz.

 

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