Mercury Messenger Mission: Praxiteles crater and volcanic vents

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of WashingtonFriday, 

Messenger spacecraft obtained this image of Mercury on Feb. 12, 2013. 

This close-up of Praxiteles crater shows several potential volcanic vents. 

One possible vent, in the bottom left of this image, holds particular interest because it also hosts many hollows. 

A crater chain on the bottom right of the image altered by the formation of hollows. 

Researchers need further data to fully understand the relationship between hollows and the materials in which they form.