Mars wasn’t always the cold, dry world that it is today — billions of years ago it likely looked a lot more like Earth, with seas and rivers of liquid water on its surface and a thick atmosphere with air and clouds. But something happened over the course of Mars’ history to transform it from…
Tag: water on Mars
Mars Express Gets the Delta Blues
ESA’s Mars Express orbiter has imaged yet more evidence of a watery past on Mars with what appears to be the remains of a river delta, seen here, located just within the 40-mile (65-km) -wide Eberswalde Crater. Formed over 3.7 billion years ago, Eberswalde Crater was in the top 4 list of possible landing sites…
Slicing Into Mars’ Past
Deep gashes – called grabens – slice across the surface in the Nili Fossae region of Mars, seen above in an image from the Mars Express orbiter taken in February 2008. A German word meaning “ditch”, a graben is a downthrust strip of land bordered by scarps on either side. They are typically caused by…
Lights in the Dark 