The European Space Agency has published stunning new photos of the Mars Crater in Korolevo.
The images are composites, made of five separate photographs made by ESA and orbiter Mars Ekpress, which flew over the Earth's planet since 2003.
The crater is 82 kilometers (51 miles) wide, filled with a layer of ice at a depth of 1.8 miles (1.1 miles) in the thickest place.
Unlike other ice craters on the red planet, Korolev retains ice throughout the year, thanks to the layer of cold air trapped in the crater, which cools its contents.
Krater Korolev was named after Sergei Koroleva, the chief missile engineer of the Soviet Russia during the space race between the USSR and the US in the 1950s and 1960s. He worked on the Sputnik program sent by the first man-satellite in orbit, as well as the Vostok program in which the cosmonaut Yuri Gagarin became the first man in the universe in 1961.