It's so rare that submarines face off underwater that this February 9, 1945, encounter is the first and only such dogfight in recorded naval history. Stream this story and more on the new season of Hell Below: http://bit.ly/2PnVqwW | Smithsonian Channel Aviation Nation

On the anniversary of VJ Day, revisit the aerial dogfights and naval clashes of the Battle of the Philippines Sea, thanks to stunning restored color footage. It is a visual record of the battle that underlined U.S. superiority in the Pacific. Tune in for The Pacific War in Color marathon starting at 2 PM. #VJDay | Smithsonian Channel Aviation Nation

It's April 1972, and a team of F-4 Phantoms is on a hunting mission, high above the skies of Vietnam. But they'll need to be careful: the Russian-made MIG-21s are fast, tricky and very maneuverable. 🎥Air Warriors | Smithsonian Channel Aviation Nation

From birds of prey that pair for life to snails that can grow to a foot long, these 11 facts about the Amazon are guaranteed to shock you. | Smithsonian Channel

From history to mystery and everything in between, we've got your holiday viewing covered. Stream thousands of hours of your favorite Smithsonian Channel programs in glorious 4K UHD, commercial-free, all for just $4.99 per month. Get the new Smithsonian Channel Plus app today and start exploring. http://bit.ly/2EFSjvP | Smithsonian Channel

From reindeer calves to a gray seal pup, the young animals featured on Stormborn prove that they’ve been resilient since birth. | Smithsonian Channel