decreasing crust tagged posts

Researchers analyzed the gravity signatures of more than 1,200 craters (in yellow) on the far side of the moon. Credit: Courtesy of the researchers

The far side of the moon ie Lunar Highlands have been so heavily bombarded – particularly by small asteroids – that the impacts completely shattered the upper crust, leaving these regions essentially as fractured and porous as they could be. The scientists found that further impacts to these highly porous regions may have then had the opposite effect, sealing up cracks and decreasing porosity.

4 billion years ago, during the Late Heavy Bombardment, the moon took a severe beating, as an army of asteroids pelted its surface, carving out craters and opening deep fissures in its crust...