@j_bettany ·
@j_bettany - 19 Jan 2011
The Most Massive Black Hole in the Observable Universe – An Event Horizon 20 Billion Kilometers Across http://bit.ly/i6H2vf
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@j_bettany ·
The Most Massive Black Hole in the Observable Universe – An Event Horizon 20 Billion Kilometers Across http://bit.ly/i6H2vf