article_snippet.sent: From deep craters to basaltic plains, the varied surface of the moon has been revealed in stunning detail by the US Geological Survey.
article_snippet.sent: The grey and white areas reveal higher peaks, while darker blues show deep craters. 
article_snippet.sent: Darker blue show deep craters, while The grey and white areas reveal areas of elevation .
article_snippet.sent: The feature is located on the surface of the moon's near side which is characterised by low elevations and numerous ancient volcanic plains.
article_snippet.sent: Scientists believe the rifts are buried beneath dark volcanic plains in this area, and so far, Scientists have only been detected in the gravity data provided by the Grail probes.
article_snippet.sent: The lava-flooded rift valleys are unlike anything found anywhere else on the moon and may at one time have resembled rift zones on Earth, Mars and Venus.