The largest river on Earth is actually in the sky

Explore the Amazon rainforest’s flying rivers, and dig into why these invisible waterways are essential to life on Earth.

The largest rainforest in the world, the Amazon, exists between two rivers — but not in the way you might think. At ground level, the Amazon River and its tributaries weave their path. But above the canopy, bigger waterways are on the move. These flying rivers are almost invisible, but are essential to life on Earth.