First discovered on images from Mars Global Surveyor, they may be the site of recent liquid water.
Attempts were made by Mars Global Surveyor, to photograph the area the lander was believed to be.
Mars Global Surveyor found several examples of this process.
The Mars Global Surveyor became the first spacecraft in 21 years to orbit the planet successfully.
After this mission they were selected to provide the main camera for Mars Global Surveyor.
The data is from the Mars Global Surveyor, which has been orbiting the planet for two years.
An image below from Mars Global Surveyor shows this.
Below are some examples of gullies that were photographed by Mars Global Surveyor.
These were first discovered by the Mars Global Surveyor.
The map images were taken by the Mars Global Surveyor.
