A look back at the 2017 total solar eclipse

In 2017, ABC News’ David Muir anchored the network’s live coverage of “Great American Eclipse“ from Charleston, South Carolina. He’ll be anchoring once again on Monday, April 8, for the historic “Eclipse Across America.“ Millions are estimated to travel to witness it, while scientists study the effects on Earth’s atmosphere. Watch #EclipseAcrossAmerica, an unprecedented live event broadcasting the rare total eclipse starting on GMA3 and ABC News Live at 1PM ET and continuing on ABC, National Geographic TV, Nat Geo WILD, Disney and Hulu at 2PM ET. Subscribe to ABC News on YouTube: Watch 24/7 coverage of breaking news and live events on ABC News Live: Watch full episodes of World News Tonight with David Muir here: Read ABC News reports online: