Progenitors in the field of research refer to the ancestral or original sources from which something is derived or developed. In biology, progenitors refer to the precursor cells from which specific types of cells differentiate and develop. In astronomy, progenitors refer to the stars or other celestial objects that give rise to events such as supernovae or black holes. The study of progenitors in various fields helps researchers understand the origins and development of a wide range of phenomena.