Cassini

Cassini is a crater on Mars named in honour of the Italian astronomer Giovanni Cassini. The crater measures approximately 415 kilometers in diameter. It is in the Arabia quadrangle of Mars. Small craters on the floor of Cassini reveal multiple layers. Cassini crater probably once was full of water since its rim seems to have been breached by the waters. Both inflow and outflow channels have been observed on its rim. The lake would have contained more water than Earth's Lake Baikal, our largest freshwater lake by volume.