This dry riverbed reveals that water as soon as flowed on the floor of Mars

In some methods, Mars is a bit like a skeleton of the Earth. We are able to see that there have been volcanoes, oceans and rivers, however the volcanoes now not smoke and the water is totally gone. A brand new picture from ESA's Mars Categorical brings dwelling the nail. The brand new picture is that of Nirgal Vallis, one of many longest drained river methods on Mars, practically 700 km lengthy. It's simply south of the equator, in a area formed not solely by the water flowing over the…