A total solar eclipse will sweep across the Northern Hemisphere on Wednesday, Aug. 12, and for the vast majority of the world's population who won't be standing inside the narrow path of totality, a livestream will be the only way to watch the moon fully block the sun. Here's a country-by-country breakdown of where and how to watch online.

NASA's Flagship Broadcast

NASA will anchor the day's coverage with a live broadcast beginning at 1:15 p.m. Eastern time, available on NASA , the agency's website, and its social media accounts on Facebook, Instagram, X, Twitch and YouTube, as well as through Amazon Prime. The broadcast will feature telescope views from multiple points along the eclipse path, footage from a WB-57 high-altitude research aircraft chasing the moon's shadow across the sky, and expert commentary from solar physicists throughout the event. NASA's 2024 eclipse broadcast drew more than 15 million concurrent viewers, and the agency's 2026 stream is expected to match or exceed that figure. Viewers can also access NASA's stream through its dedicated app, available on iOS, Android, Roku, Apple TV and Fire TV devices, which supports background audio for those who want to listen to commentary while doing other tasks.

Where Totality Will Actually Be Visible

The path of totality begins over a remote, sparsely populated stretch of northern Russia before crossing the Arctic Ocean into eastern Greenland, sweeping down over Iceland, clipping the northwestern tip of Portugal, and finally crossing northern Spain and the Balearic Islands before ending over the Mediterranean Sea. Totality reaches Iceland at 1:45 p.m. Eastern time and arrives in Spain at 2:28 p.m. Eastern........

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