Images of a frail, thin, pale-skinned, strikingly handsome man with long locks of light brown hair are nearly ubiquitous in the world of Christianity. During this Christmas season, they seem to be especially numerous. But these images are based almost entirely on paintings by artists such as Leonardo da Vinci, who lived hundreds of years after Christ, and who had no insight into His actual appearance. And a team of British forensic scientists now says the real Jesus Christ would have looked nothing at all like those popular images. The team’s findings are significant, not because they conclusively say what...