Blood moons. They sound ominous and mysterious, but do these celestial phenomena actually have any spiritual significance? Some say "yes," and are urging believers to take note. Other say "no," and warn Christians against so-called "prophetic sensationalism." This Saturday on Up for Debate, Julie Roys will explore both sides with two Christian experts holding different positions. Don't miss the discussion Saturday at 11 a.m. on Up for Debate!