What are 'Black holes'?
Black holes are the most powerful known forces in the universe. They grow by gobbling up stars or merging with other black holes. This means they're packed full of space matter and not really "holes" at all.
© Copyright 2015, NZME. Publishing Limited
Assembled by: (static) on production bpcf02 at 21 Apr 2015 17:45:59 Processing Time: 269ms