The popular multimedia presentation Star of Bethlehem will be shown again during the holiday season at Christenberry Planetarium in Samford University’s Propst Hall. Presentations will be at 7 p.m. Dec. 11, 14 and 17 and 10:30 a.m. Dec. 12. Groups can reserve special showings at additional times. The hourlong show addresses questions that historians and scientists have long pondered about…