The moon is tidally locked to earth whereby it's "honeymooners" face always faces us, as seen in the graphic above, something scientists are now finding, with Kepler and earthbound telescopes, with tidally locked planets orbiting stars of all types, on almost a daily basis. With the "Eyeball" planets, as described by Sean Raymond in Nautilus, the interesting part is not the tidally locked condition but rather the zone residing between the light and dark side of the planet, where life can evolve just as life might be evolving in Enceladus and Europa, in subterranean oceans, due to the constant flexing of these moon's cores by the enormous gravitational pull of Saturn and Jupiter.
Life finds a way... Always - Robert E.