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In 1900 a group of sponge divers blown off course in the Mediterranean discovered an Ancient Greek shipwreck dating from around 70 BC. Lying unnoticed for months amongst their hard-won haul was what appeared to be a formless lump of corroded rock- which turned out to be the most stunning scientific artefact we have from antiquity. For more than a century this Antikythera mechanism puzzled academics- but now- more than 2000 years after the device was lost at sea- scientists have pieced together its intricate workings. In Decoding the Heavens- Jo Marchant tells for the first time the story of the 100-year quest to understand this ancient computer. Along the way she unearths a diverse cast of remarkable characters - ranging from Archimedes to Jacques Cousteau - and explores the deep roots of modern technology not only in Ancient Greece- the Islamic world and medieval Europe....