article_snippet.sent: In the map, the universe is fairly evenly distributed, apart from in this one area.
article_snippet.sent: The huge unexpected region contains about 20 per cent less matter than other regions of the universe and about 10,000 less galaxies.
article_snippet.sent: While other sparse regions have been discovered, nothing on this scale has been found before.
article_snippet.sent: The huge unexpected Cold Spot region, shown, contains about 20 per cent less matter than other regions of the universe, and about 10,000 less galaxies. 
article_snippet.sent: While other sparse regions have been discovered, nothing on this scale has been found before .
article_snippet.sent: the researchers are continuing to study the void with improved data from PS1, and from the Dark Energy Survey being conducted with the Cerro Tololo Inter-American Observatory in Chile.