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# Black Holes

All time
DCU researchers help solve cosmic riddle on the birth of massive black holes in the early universe
There are 2,076 black holes lurking in this photo of deep space
What is the theory of relativity all about?
Dr Cormac O’Raifeartaigh
Column: What does this week’s major physics breakthrough actually mean?
Conor Farrell
Gamma-ray burst blasted the Earth in 8th century
NASA prepares to launch mission to hunt down black holes