Hubble and Chandra discover dark matter is not as sticky as once thought

March 27, 2015 3:19 PM

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Hubble and Chandra discover dark matter is not as sticky as once thought

Dark matter does not slow down when colliding with each other, which means that it interacts with itself even less than previously thought.

The team found that, like the galaxies, the dark matter continued straight through the violent collisions without slowing down relative to the galaxies. Because galaxies pass through unimpeded, if astronomers observe a separation between the distribution of the galaxies and the dark matter, then the...

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