Queen's University, Kingston, Canada
In early March 2010, the second experimental detection of geoneutrinos was reported by the Borexino collaboration (the first was made by the KamLAND experiment). So, what have we learned about geoneutrinos and about the Earth? What is there to be learned? I will provide an overview of the topic touching on: a) the main questions that geosciences hopes can be addressed by geoneutrinos, b) constructing geoneutrino models, and c) the capabilities of current and planned experiments.