  In this study, we examine the role of the repulsive Casimir force in
counteracting the gravitational contraction of a thin spherically symmetric
shell. Our main focus is to explore the possibility of achieving a stable
balanced configuration within the theoretically reliable weak field limit. To
this end, we consider different types of Casimir forces, including those
generated by massless scalar fields, massive scalar fields, electromagnetic
fields, and temperature-dependent fields.
