Water on Mars in the Past
{"Image DocumentName": "Water on Mars in the Past?", "Image ImageDescription": "Many geological features of Mars suggest that it had a lot of water about 3 billion years ago. It may even have a pleasant, hospitable environment. Dried up riverbeds\u2026 Gullies? Lake bottom. Images from Mars Rover Spirit at a suspected ancient lake site showed rock structures consistent with those formed from sediments in standing water. Riverbed? Gullies. Lake Bottom?", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}