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cold dark matter

   Also found in: Acronyms, Wikipedia 0.01 sec.
cold dark matter [¦kōld ′därk ‚mad·ər]
(astronomy)
A hypothetical type of dark matter consisting of particles that would have been in thermal equilibrium while traveling at nonrelativistic velocities in the early universe; possibilities include axions, photinos, gravitinos, heavy magnetic monopoles, and weakly interacting massive particles.


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By providing a natural explanation for the origin of galaxies, the simulations support the view that cold dark matter is the best candidate for the mysterious material believed to make up the majority of our Universe.
The highly successful model holds that the gravity of a proposed, invisible material known as cold dark matter draws together gas and stars to form galaxies.
The four main types of dark matter are called 1- baryonic dark matter; 2- warm dark matter; 3- cold dark matter and 4- hot dark matter.
 
 
 
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