What is the highest waterfall in the solar system?

The highest waterfall in the solar system is located on Saturn's largest moon, Titan, and is known as the 'Niagara Falls of the Solar System.' The falls are created by liquid methane and ethane flowing from high cliffs into deep valleys, with a total drop of around 3280 feet (1000 meters).

The discovery of the 'Niagara Falls of the Solar System' was made by NASA's Cassini spacecraft, which orbited Saturn and its moons from 2004 to 2017. The data collected by Cassini showed that Titan has an active methane cycle, with methane lakes and seas, rivers, and rain.

The presence of liquid methane and ethane on Titan has also led to speculation about the possibility of life on the moon. While the conditions on Titan are not suitable for life as we know it, some scientists believe that there may be methane-based organisms that have evolved to survive in this extreme environment.