Kelle is an Assistant Professor of Physics and Astronomy at Hunter College. Her current scientific research focuses on studying the physical properties of low-mass stars and brown dwarfs. She has held a Spitzer Fellowship at the California Institute of Technology and her activities have been supported by grants from the National Science Foundation, the Sloan Foundation, the Space Telescope Science Institute. She additionally participates in outreach for K-12 community to increase awareness of gender and diversity issues in the sciences.