Scientists have traced Earth's path through the galaxy via tiny crystals found in the crust
- Written by: Chris Kirkland, Professor of Geology, Curtin University
Triff/Shutterstock“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 grains, smaller than the width of a human hair. Then, we extrapolate the chemical processes they suggest to ponder the...





















