This is the first view scientists have had of a fluvial system - one relating to a river or stream -- from the surface of Mars.

FORBES: Wall of Gale Crater

Foreign diplomats in Tehran detect a link between the resolution and Iran's seizure, less than a week later, of eight British servicemen who had allegedly strayed across Iraq's fluvial border with Iran.

ECONOMIST: The Iranians are blowing hot and cold in Iraq

Fluvial processes are also critical to the pillars.

UNESCO: EDUCATION

At first glance, it might seem obvious that it was through the action of flowing water (fluvial), but the Curiosity team needs to rule out the possibility that these rocks were deposited by the wind (aeolian) or by some kind of surge, such as the fast-moving clouds of gas and rock that will often plummet down the sides of particular types of volcano (a pyroclastic surge).

BBC: Curiosity Mars rover to investigate classic rock type