Spacecraft snaps image of ancient Mars lake bigger than any on Earth

Long ago, Mars teemed with water.New imagery captured by the European Space Agency's Mars Express orbiter depicts the planet's once watery past. The spacecraft, which has orbited the Red Planet for two decades, snapped views of the eroded remains of once sprawling Lake Eridania — which the space agency noted was larger than any lake on Earth. (The largest lake on Earth is by far the Caspian Sea, which at some 149,200 square miles, or 386,400 square kilometers, is bigger than Montana.)"We b