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Grimaldi explained. The X-ray revealed several figures, including the outline of what could be one of the three wise men. Also visible is the outline of a baby in a manger with a halo around its head. MASSIVE, 2,034-FOOT ASTEROID WILL ZOOM PAST EARTH JUST AFTER CHRISTMAS X-rays of a medieval painting revealed a Nativity scene that was painted over centuries ago. (Northumbria University and The Bowes Museum) It was common practice to apply gold leaf to these type[s] of religious paintings and in the x-ray, we can see that gold is present in the halo around the babys head.