The best reason to see the imminent total lunar eclipse

There are a number of compelling reasons to catch the looming March 13-14 total lunar eclipse, which will be visible in the entire lower 48 states and greater Americas.Perhaps the best one is that no two such eclipses are the same. That means, weather permitting, you'll witness something unique. Total lunar eclipses occur when the sun, Earth, and moon are in alignment, allowing Earth to cast a shadow on the moon and block most sunlight from reaching the lunar surface. But our planet's atmosphere