Hellas Planitia

A Mars Orbiter Laser Altimeter (MOLA) image (onboard the Mars Global Surveyor orbiter) of Hellas Planitia.

Map showing locations of Hellas Planitia and other nearby regions

Hellas Planitia is a vast meteorite impact basin located at 42° 42'S 70° 00'E, in the Mars southern hemisphere. Also known as the Hellas Impact Basin, this landmark has a very obvious impact crater ring 2,300 km (1,400 mi) in diameter. This is one of the largest known impact craters in the solar system.

Channels in Hellas quadrangle

Honeycomb terrain on floor of Hellas Basin

Tongue-shaped glacier in Hellas Planitia

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