Monday , January 27 2020

Dark Matter: NASA confirms ‘Cold Dark Matter’ theory with Hubble telescope | Science | News

In the absence of evidence for such small-scale clumps, some researchers have developed alternative theories, including “Warm Dark Matter”.

The “Warm” theory suggests dark matter particles are fast moving, speeding around too fast to merge and form smaller concentrations.

The new Hubble observations do not support this scenario, finding dark matter is “Colder” than it would have to be in the “Warm Dark Matter” rival theory.

Dr Anna Nierenberg of NASA’s Jet Propulsion Laboratory (JPL) said: “Dark matter is colder than we knew at smaller scales.


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