What is a supermoon eclipse and when is it visible?

People across North America will soon be able to get the glimpse of a supermoon eclipse, which happens when a supermoon coincides with a lunar eclipse. Dr. Paul Sutter speaks with NBC News’ Savannah Sellers about when to see the moon and when the eclipse will begin. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: Breaking News Alerts: