Hokusai's Molten Past
Interplanetary debris strikes the surface of Mercury with such force that portions of the rocky surface at the impact site melt. In this high-resolution image of Hokusai crater's interior and ejecta, you can see the smooth surfaces where impact melt ponded and cooled, forming new rocky plains.
Date acquired: July 29, 2011
Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington