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This is the Korolev crater, near the north pole of Mars, as captured by the European Space Agency (ESA)'s Mars Express mission.
The crater is 82km (50 miles) across, and filled with ice 1.8km thick.
It was named after rocket engineer and spacecraft designer Sergei Korolev, the architect of the Soviet Union's space programme.
Mr Korolev worked on the first interplanetary missions to the Moon, Mars and Venus, and the Sputnik programme, which launched the world's first artificial satellite.