NASA: Gravity Anomalies on Moon May Indicate Ancient Volcanic Activity, Not Asteroid Impact
NASA has collected evidence that the topography of the Oceanus Procellarum region of the moon believed to be the result of an asteroid impact may have been caused instead by the formation of rift valleys. The agency said Wednesday it used the Lockheed Martin-built Gravity Recovery and Interior Laboratory to observe the gravity gradients of the moon’s surface and found gravitational anomalies. The GRAIL gravity […] More