Loubser is an alumnus of the NWU and obtained her BSc and MSc with Physics at the Potchefstroom Campus. She then obtained her PhD in Astrophysics at the University of Central Lancashire in England in 2009 with a bursary from SALT (Southern African Large Telescope).
During her postdoctoral fellowship she worked for the SKA radio astronomy project in Cape Town after which she joined the Centre for Space Research at the NWU.
Loubser’s research is on the formation and evolution of galaxy systems in the Universe. She is currently also chairperson of the Astro and Space Physics specialists group of the South African Institute of Physics as well as chairperson of the national committee for the International Astronomy Union (IAU).