Later Photographs Bright deposits of water ice alternate with bands of dark sand, descending from the left into a 610 metre deep canyon. The layers accumulated over millions of years, and will help scientists to piece together the history of climate change on Mars. Victoria Crater is just 800 metres wide, as seen in this satellite image. The walls of Victoria Crater. A new lander, Phoenix, was photographed from an orbiter overhead as it parachuted to the northern arctic in May 2008. BACK