String (In)Stability Issues with Broken Supersymmetry

We review the main results of our investigations motivated by tadpole potentials ten--dimensional strings with broken supersymmetry. While these are at best partial indications, it is hard to resist feeling that they do capture some lessons String Theory. For example, very lead weak-string-coupling cosmologies appear provide clues on onset inflation from an initial fast roll. The transition, if accessible us, would offer a natural explanation for lack power manifested CMB large angular scales. In addition, same can drive spontaneous compactifications lower--dimensional Minkowski spaces corresponding length Furthermore, cosmological solutions exhibit intriguing ``instability isotropy that, taken face value, point accidental origin compactification. Finally, symmetric static \(AdS \times  S\) driven also exist, but unstable due mixings induced their internal fluxes. On other hand, original Dudas--Mourad solution perturbatively stable, and we have gathered detailed evidence instabilities fluxes be held under control in similar class weak--coupling type-IIB space.