Laura Pentericci’s main scientific activity is in the field of observational Extragalactic Astrophysics. She is interested in studying galaxies during the epoch of reionization, both to understand how they formed and evolved  at such early epochs, and also to use them as probes of the change in the Intergalactic medium that took place during this epoch. To this aim she is particularly focused on the search and study of the so-called Lyman alpha emitters, which are amongst the most important probes of the very distant universe. Laura Pentericci has conducted studies mainly  using state of the art  spectroscopic facilities and has led large public observational surveys. She is also deeply involved in the development of future spectroscopic facilities such as MOONS for the VLT  and MOSAIC for ELT.