Cloud Mummies v.21
Ancient Martian Rivers?
Planetary scientists at the European Space Agency have released 3D images of the “striking upper part of the Reull Vallis region of Mars,” which reveal a 932-mile-long (1500 kilometer) river running from the Promethei Terra Highlands to the vast Hellas basin. This river was huge. The image data from ESA’s Mars Express spacecraft shows that, at some points, the riverbed is 4.3 miles (7 kilometers) wide and 984 feet (300 meters) deep.