The Last Sunset (1974)

the eagle of alan carter, returning from a survey on a nearby planet, is reached by a strange object that attaches to the cockpit. soon several similar capsules descend on the lunar surface, bringing water and atmosphere. the moon goes into orbit and the spectacle of the first dawn is moving. but the real intention of the inhabitants of the planet near which the moon is passing is to give the earthlings what they seek only to keep them away from their land.