About Katie Mack

Katherine (Katie) Mack is a theoretical astrophysicist working at the University of Melbourne as a postdoctoral fellow on an ARC Discovery Early Career Researcher Award. She studies dark matter and the growth of cosmological structure in the universe, developing new ways to shed light on the early universe and fundamental physics using astronomical observations. She is also an active science communicator, participating in a range of science outreach programs, and has written for Sky & Telescope, Time.com, and the Economist tech blog, among others. She blogs about cosmology at The Universe, in Theory.

Why M82′s new supernova excites astronomers

On January 29, 2014

Last Wednesday, a supernova kept me up at night. The supernova itself was over and done with 12 million years ago, when a white dwarf star in M82 nuclear-exploded itself into oblivion, lighting up brighter than its home galaxy, and condemning to extinction any unfortunate life-forms that might have been within a 50 light years […]

Space station’s detector has not found dark matter, despite what some media reports say

On April 5, 2013

Let me start with this: the AMS-02 detector on the International Space Station has not detected dark matter. It hasn’t found “indications” of dark matter, or even “hints.” It certainly is not providing the “best evidence yet” of dark matter’s existence. What AMS has done is measure, to very high accuracy, the amount of antimatter […]