A recently released image taken by the Mars Reconnaissance Orbiter shows a carbon dioxide avalanche as it was happening on Mars; such activity is thought to be brought about by seasonal warming.

A recently released image continues to reveal just how active the surface of Mars is. 

The Mars Reconnaissance Orbiter captured a carbon dioxide avalanche as it was happening. 
It shows a white puff amidst the red, rocky layer of a steep cliff. 

Despite its relatively small appearance, scientists believe the cloud-like dispersion is around 65 feet wide and likely resulted from CO2 frost breaking off