Brightest gamma-ray burst disappeared without a trace earthsky.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from earthsky.org Daily Mail and Mail on Sunday newspapers.
The unusual star grouping, known as CPD-29 2176, is located about 11,400 light-years from Earth and was first identified by the US space agency s Neil Gehrels Swift Observatory, launched to space in 2004.