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Press Release 06-120
Astronomers 'See' the Invisible

First 'direct observation' sheds new light on dark matter

Back to article | Note about images

The separation of luminous gas appears red, and dark matter appears blue.

In this image, the luminous gas from the collision (red) lags behind the two clusters of dark matter (blue).

Credit: Marusa Bradac, Kavli Institute for Particle Astrophysics and Cosmology


Download the high-resolution JPG version of the image. (1.3 MB)

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Image showing colliding galaxy clusters

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Hot, luminous gas (red) separates from dark matter (blue) after the collision of two galaxy clusters about 3 billion light years away.

Credit: NASA

 



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