xMoho : The boundary between the crust and the mantle in the earth. This is a depth where seismic waves change velocity and there is also a change in chemical composition. Also termed the Mohorovicic' discontinuity after the Croatian seismologist Andrija Moh
A new study shows that water might have been on Earth very early in its history. Before this new information, scientists thought water came to Earth from comets. Scientists have learned this by studying...Read more