... I am a radio astronomer and astrophysicist at CSIRO Astronomy and Space Science . ... I completed my doctorate in astrophysics at the University of Oxford , where I used data from a radio telescope to observe microwave radiation from the earliest moments of the Universe. ... CSIRO Astronomy Space Science Australia Telescope National Facility Sydney Institute for Astronomy Oxford Astrophysics NASA Extragalactic Database NASA Astrophysics Data System arXiv.org . ...