Aired: Feb 10, 2015A colossal tsunami hangs suspended, its fury held in check, while a mysteriou...


A NASA astronaut's discovery of a ring-shaped formation in Lake Baikal's ice from the International Space Station sparks the uncovering of more enigmatic features on the world's oldest and most captivating lake.
Streaming in:
United States
Currently, you have the opportunity to watch "What on Earth?" by streaming it on the following platforms: Max, Discovery+, Science GO, Spectrum On Demand, HBO (Via Hulu). Additionally, viewers have the option to either rent or purchase "What on Earth?" on the following digital platforms: AppleTV, Amazon, Fandango at Home, YouTube.
Seasons: 12
Network: Science
Production Country: United States
Genres:Documentary