Astronomy: Lunar Lava Flow

Ever since Ranger 7 shot its closeups of the moon, scientists have been studying the pictures in minute detail. They contain the most detailed information man has ever collected about his planet's nearest neighbor. And they are already shattering some long-held theories. Ranger's lunar snapshots, says Dr. John A. O'Keefe of Goddard Space Flight Center, prove that the moon has not been a dead cinder ball for billions of years, as many astronomers believe. In fairly recent times, it seems to have stirred with volcanic activity.

The best Ranger photographs, explained O'Keefe in teh magazine Science, show...

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