Artist's impression of Mars four billion years ago
{"Image ImageDescription": "This artist\u2019s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars\u2019s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometres.", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image Software": "Adobe Photoshop CC 2014 (Windows)", "Image DateTime": "2015:03:04 19:09:17", "Image ExifOffset": "568", "EXIF DateTimeOriginal": "2015:03:05 20:00:00", "EXIF DateTimeDigitized": "2015:03:04 15:47:33", "EXIF ColorSpace": "Uncalibrated", "EXIF ExifImageWidth": "675", "EXIF ExifImageLength": "414"}