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Moon sighting is a key part of Muslim life – how the lunar cycle determines the start of Ramadan and Eid

By Imad Ahmed, PhD Candidate, Faculty of Divinity, University of Cambridge
Emma L Alexander, Research Fellow in Astrophysics, School of Physics and Astronomy, University of Leeds

When Muslims arriving in the UK tried to sight the new crescent Moon, they would often struggle – in part due to a very British problem: the cloudy weather.

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