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cosmology

If, as it now seems, every single galaxy has a black hole at its heart, this can't be a coincidence. Perhaps black holes are an essential part of what galaxies are and how they work.
No one had expected that black hole size and galaxy size could possibly be related. It suggested some mysterious invisible connection between a galaxy and its black hole. But what this was was a mystery scientists would have to wait three years to solve.
The first breakthrough came when a new instrument was added to Hubble Space Telescope. This dramatically accelerated the discovery of new black holes, giving scientists a wealth of new potential leads to follow. For three years the data has been coming down to Earth. Amongst those who've been sifting through it, are two young competing researchers. What they were to discover this year would turn the world of cosmology on its head.

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