Home A double ridge cutting across the surface of Europa is seen in this mosaic of two images taken by NASA’s Galileo during the spacecraft’s close flyby on Feb. 20, 1997. Analysis of a similar feature in Greenland suggests shallow liquid water may be ubiquitous across the Jovian moon’s icy shell. (NASA/JPL/ASU) A double ridge cutting across the surface of Europa is seen in this mosaic of two images taken by NASA’s Galileo during the spacecraft’s close flyby on Feb. 20, 1997. Analysis of a similar feature in Greenland suggests shallow liquid water may be ubiquitous across the Jovian moon’s icy shell. (NASA/JPL/ASU)
A double ridge cutting across the surface of Europa is seen in this mosaic of two images taken by NASA’s Galileo during the spacecraft’s close flyby on Feb. 20, 1997. Analysis of a similar feature in Greenland suggests shallow liquid water may be ubiquitous across the Jovian moon’s icy shell. (NASA/JPL/ASU)
