Prof Amanda Weltman holds a PhD in Physics from Columbia University in New York. She has specialised in the fields of cosmology, string theory and theoretical physics and is well known for proposing the Chameleon particle that may explain the accelerated expansion of the universe.
She is a a theoretical physicist working in the Cosmology and Gravity Group in the Department of Mathematics and Applied Mathematics at the University of Cape Town as an Associate Professor. She holds the South African Research Chair in Physical Cosmology and is a P-rated Researcher.