The Mars Express orbiter has taken some stunning photos of Korolev Crater, an ice-filled crater near the Martian north pole. It looks from a distance like a snowy winter landscape on Earth.

Mars is famous for its polar ice caps – composed of both water ice and carbon dioxide ice – which stand out starkly against the surrounding rust-colored terrain. But plentiful ice can be found outside of Mars’ main ice caps as well, including underground.
The Martian northern winter solstice came on October 16, 2018.

This image from ESA’s Mars Express shows Korolev crater, an 82-kilometer-across feature found in the northern lowlands of Mars.

This oblique perspective view was generated using a digital terrain model and Mars Express data gathered over orbits 18042 (captured on 4 April 2018), 5726, 5692, 5654, and 1412. The crater itself is centered at 165° E, 73° N on the martian surface. The image has a resolution of roughly 21 meters per pixel.  

This image was created using data from the nadir and color channels of the High Resolution Stereo Camera (HRSC). The nadir channel is aligned perpendicular to the surface of Mars, as if looking straight down at the surface.

Source:

https://www.esa.int/spaceinimages/Images/2018/12/Perspective_view_of_Korolev_crater

Image Copyright: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO