Do you want to watch the moon turn red? Set your alarm for 1am. There's going to be a "Blood Moon" in the early morning hours Tuesday. A lunar eclipse will cause the moon to appear red as it passes into the Earth's shadow. The eclipse is expected to begin about 1 AM Central time.  Astronomers predict the moon will appear to turn red about an hour into the eclipse. The "Blood Moon" is expected to last about an hour. The next one is forecast for October 8th.