Snow rollers form in rare weather conditions — wind blows a snow cylinder that picks up more snow as it rolls.

There are organisms on Earth that can survive being frozen for years and still come back to life.

Fact #2494 · Nature

Tardigrades can survive extreme radiation, freezing, and even space.

Fact #2115 · Nature

Some trees can communicate with each other using underground fungal networks.

Fact #2162 · Nature

The Amazon River discharges more fresh water into the ocean than the next seven largest rivers combined.

Fact #3592 · Nature

The ozone layer is located in the stratosphere.

Fact #140 · Nature

Apples float in water because 25% of their volume is air.

Fact #3415 · Nature

A cloud can weigh more than a million tons.

Fact #2716 · Nature

Ancient glaciers carved valleys and fjords.

Fact #728 · Nature