Rashel did her undergraduate degree at The Australian National University (ANU) from 2007 to 2009. She double majored in Physics and Astrophysics for the Bachelor of Science degree. She extended her studies for a Bachelor of Science (Honours) degree in Astrophysics undertaken at the Research School of Astronomy and Astrophysics (RSAA) at Mt. Stromlo Observatory in 2010.
During her honours year, she realised that science communication was more suitable for her and decided to undertake a PhD degree at the Australian National Centre for the Public Awareness of Science at ANU in 2011.
Her PhD research examined the American situation comedy "The Big Bang Theory" which revolves around the life of two physicists, Leonard (experimental physicist) and Sheldon (theoretical physicist). The show has a strong scientific basis and the information is mostly accurate which if successful communicated, can become a powerful tool for engaging the audience with science.