While we cannot directly observe them, every galaxy has its own halo of dark matter, on which familiar, visible matter hangs. Our solar system orbits the centre of our galaxy, while Earth orbits the Sun. As we do this, our motion through the Milky Way’s halo of dark matter creates the Headwind Effect. Dr Grace Lawrence asked whether this Headwind exhibits “gusts” of higher intensity.

It’s not uncommon to have “four seasons in one day” in Melbourne. Our variable weather patterns are driven by conditions moving from west to east and, to some extent, from the Southern Ocean to Australia. These variables control cloud formation and, just like following a cake recipe, change in flavour and form depending on the ingredients you put in.

Every year, final year PhD candidates present their doctoral studies to the Royal Society of Victoria, competing for four Prizes that recognise excellence in Victoria’s early career scientists. Eight finalists presented under four categories: Biological Sciences, Biomedical & Health Sciences, Earth Sciences, and Physical Sciences.