News Release 06-120
Astronomers 'See' the Invisible
First 'direct observation' sheds new light on dark matter
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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
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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.