Black Holes Interest_History how offshore navigators depended on

how offshore navigators depended on it for their lives in wild and dangerous seas until the advent of GPS – and the sextant’s vital role in the history of exploration

or simply love nautical heritage

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by the end of the seventeenth century

Black Holes Interest_History how offshore navigators depended onAt the heart of the Milky Way lies a supermassive black hole 4 million times more massive than our Sun. A place where space and time are so warped that light is trapped if it ventures within 12 million km. According to Einstein, inside lies the end of time. According to 21st century physics, the reality may be far more bizarre. Authors: Professor Brian Cox and Professor Jeff Forshaw Black holes lie where the most massive stars used to shine and at the