Lunar images alter understanding of impact history



New images of the Moon from the Lunar Reconnaissance Orbiter could change our view of the history of impacts on the Moon. In 1972 the Apollo 17 mission took samples from the region of the Serenitatis impact basin. Scientists believed that the impact that created the Serenitatis basin was responsible for the formation of the Apollo 17 impact melt samples, which were dated to 3.8 billion years ago. A geological feature known as the Sculptured Hills, which surround the Apollo 17 landing site, was also believed to have been created from ejecta from the Serenitatis impact.