There are various synonyms for the term "star dusts" that are often used to refer to the tiny particles or matter that form in the cosmos. Some synonyms for star dusts include cosmic dust, interstellar dust, space dust, and extraterrestrial particles. These terms all essentially refer to the same type of cosmic matter that is present throughout the universe, and they are often studied by scientists to gain insights into the formation and evolution of galaxies and other celestial bodies. So whether you call it star dusts, space dust, or cosmic particles, the study of this fascinating material is an important area of scientific research that contributes to our understanding of the cosmos.