Violent collisions between the infant Earth and other objects in our Solar System generated significant amounts of iron vapor, says a group of researchers led by Dr Richard Kraus of Harvard University and the Lawrence Livermore National Laboratory. Earth. Image credit: Kelvin Song / CC BY-SA 3.0. Dr Kraus and his colleagues used one of the world’s most powerful radiation sources, the Sandia National Laboratories Z-machine, to recreate conditions...
