Scientists have traced Earth's path through the galaxy via tiny crystals found in its crust - Phys.org

"To see a world in a grain of sand," the opening sentence of the poem by William Blake, is an oft-used phrase that also captures some of what geologists do.

"To see a world in a grain of sand," the opening sentence of the poem by William Blake, is an oft-used phrase that also captures some of what geologists do. We observe the composition of mineral gra… [+6308 chars]

full article...