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===Sir Colin Humphreys 1991===<!---- The then Head of the Department of Metallurgy and Materials Science at Cambridge---->[https://www.ae-info.org/ae/Member/Humphreys_Colin/CV Professor Sir Colin Humphreys, FRS] , is a physicist and materials scientist. In 1991===The then Head of the Department of Metallurgy and Materials Science at Cambridge he published an article about the Star of Bethlehem in the Quarterly Journal of the Royal Astronomical Society in 1991<ref>Humphreys CJ (1991) "The Star of Bethlehem - a Comet in 5BC - and the Date of the Birth of Christ", Q Jl R astr Soc, vol 32, pp 389-407. For free download from https://adsabs.harvard.edu/full/1991QJRAS..32..389H as at 05 Jan 2024.</ref>. Professor Humphreys contributed a similar article to Science and Christian Belief<ref>Humphreys C (1995) "The Star of Bethlehem", Science and Christian Belief, vol 5, pp 83-101. For free download from https://www.asa3.org/ASA/topics/Astronomy-Cosmology/S&CB%2010-93Humphreys.html as at 05 Jan 2024.</ref>.