Apod 2.6

This photo of Europa was taken by the Galileo space craft in the 1990s while it was flying through the Jovian system. Scientists, using the newly

remastered images, this being one of them, have uncovered evidence that the moon's surface hides a deep ocean. The moon experiences tidal flexing in its elliptical orbit around Jupiter, which supplies the energy to keep the ocean liquid. And even more tantalizing is the possibility that in the absence of sunlight the process of the ocean being rotated by its orbit could also supply the energy to support life, making Europa one of the best places to look for life beyond Earth.