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Cosmology

Cosmology

Competing claims over cause of cosmic cold spot

26 Apr 2017
Map of the CMB, highlighting the cold spot (circled) and the division between north and south celestial hemispheres
Void theory voided: if a super-void isn't causing the CMB cold spot (circled), what is? (Courtesy: ESA / Planck Collaboration)
A survey of more than 7000 galaxies has concluded that a mysterious cold spot in the cosmic microwav

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Keith Cooper is a science writer based in the UK
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