New survey hints at exotic origin for the Cold Spot
(PHYSorg.com Space & Earth)

A supervoid is unlikely to explain a `Cold Spot` in the cosmic microwave background, according to the results of a new survey, leaving room for exotic explanations like a collision between universes. The researchers, led by postgraduate student Ruari Mackenzie and Professor Tom Shanks in Durham University`s Centre for Extragalactic Astronomy, publish their results in Monthly Notices of the Royal Astronomical Society.