In this talk, we will explore the advances made over the past decade in the field of laser cooling of solid nanoparticles and present our ongoing experiment at the Laboratory of Trapped Ions and Cold Atoms. We will discuss the fundamental principles of laser cooling in solids, the current limitations of this technique and possible solutions, as well as the theoretical and experimental challenges that arise from both a physics and chemistry perspective. We will also examine the innovative ideas we are exploring in this field.