A big splash! – water and the giant impact

It is now widely accepted that the Moon formed as the result of a collision between two planet-sized objects. An event generally referred to as the giant impact. But that’s more or less where the consensus ends. There is currently little agreement on the relative size of the colliding bodies or the energy of the…

Earth’s doppelganger

A new paper in Nature presents some very interesting ideas about the evolution of the inner Solar System and by implication the nature of the bodies that collided in the giant impact to form the Earth-Moon system. Martin Schiller, Martin Bizzarro and Vera Assis Fernandes have looked at the calcium isotope composition of various inner…

What came after the giant impact?

One of the nice things about our regular Wednesday research group meeting is that it provides a great opportunity to exchange information about what’s new and exciting in the field. It all helps to keep you up to date, in what is, a fast moving and exciting area of research. So it was last Wednesday,…