He immediately undertook the study of Precambrian metamorphic rocks in , earning his M.
.
He saw craters on the Moon as logical impact sites that were formed not gradually, in , but explosively, in seconds.
On July 24, 1997, a memorial for Shoemaker and Jurgen Rahe was presented in the U.
They demolished a relatively small home there, and built a 13,400-square-foot mansion.
There is also a tennis court and a pool.