Shahar loves interdisciplinary science, and is involved in research in isotope geochemistry, experimental petrology, mineral physics, astronomy, and cosmochemistry. Her interests include stable isotope fractionation mechanisms; planetary differentiation; early Solar System evolution; terrestrial planet formation; experimental determination of fractionation factors; high-pressure and temperature experiments; laser ablation, and MC-ICPMS techniques.

Her research blends experimental petrology and isotope geochemistry in order to determine fractionation mechanisms that will enhance our understanding of how the Solar System evolved prior to planet formation and how planets and planetesimals formed and differentiated.