How can we use aerial photos of glaciers from the 1930s to obtain new and exact information about the Earth's changing climate? That is one of the main questions Luc Girod looked into in his doctoral thesis.
What can craters tell us about our own planet and the history of the solar system? Nils Charles Prieur armed himself with a magnifying glass and got started on the detective work.
A new study might explain the climatic changes which influenced the end of the last ice age.