The modern search for the Star of Bethlehem began with Johannes Kepler (imperial astronomer for Rudolph II of Germany), who shortly before Christmas in 1603 observed a conjunction (pairing) of Jupiter with Saturn from his observatory in Prague. That this occurred in the constellation of Pisces he thought was important as well – perhaps recalling Rabbi Isaac Abarvanel's belief, noted in his 15th-century commentary on Daniel, that not only does a conjunction of Jupiter and Saturn foretell important events, but in Pisces this holds a special significance for Israel; and such an event might even foretell the coming of the...