The Broth of Life Pictures from Mars Suppose someone sent you the photo at right and asked for your expert opinion on this geological formation. The pictures that the MGS has sent back from Mars are high-resolution, far surpassing the images sent by previous probes, like Mariner and Viking.
Scientists are able to see detail that was previously indiscernible.
Study the following pictures of Mars' surface. Click them to get more information and a closer look. Scientists interpret the gullies and canyons seen in the pictures as evidence of a relatively recent flow of liquid water on the Martian surface. The geological features show no signs of impact craters, which are formed by meteors hitting the planet. Scientists therefore conclude that the features are recent enough not to have been disturbed by meteors, which were a much more frequently occurring phenomenon when our solar system was young.