Use the Cast button in the YouTube player if it appears. Otherwise, open this film on YouTube or in the YouTube app and select your TV. Keep both devices on the same Wi-Fi.
In desktop Chrome, you can also choose Cast from the browser menu and cast this tab. For Apple TV, use AirPlay in Safari if available, or screen mirroring on your Apple device. Live comments appear on TV only when you mirror the page.
S1E1
Alien Mega Constructions
What might an unfamiliar civilization build, and why? Alien Mega Constructions imagines structures shaped by survival, culture, experimentation, and needs very different from our own.
The opening film in Cosmic Geographic explores an engineered universe through the visual language of a documentary. These megastructures and their builders are works of speculative fiction, not confirmed astronomical discoveries.