This is on Mars. We call it Hebes Chasma. Maybe melting ice caused the slump.
http://www.esa.int/spaceinimages/Images/2013/10/Hebes_Chasma_mesa
This is on Mars. We call it Hebes Chasma. Maybe melting ice caused the slump.
http://www.esa.int/spaceinimages/Images/2013/10/Hebes_Chasma_mesa