I am just wondering, if you can protect e.g. your homeworld planet from different kinds of bombardment by researching and building some special structures, and if that can sufficiently protect your planet or your ships or your culture or your structures on this planet from being destroyed?

Furthermore, is eg. number of protecting structures influencing level of protection, i.e. mitigation of efect of bombardement?

Thanks very much for your answer and experience. So far I have never had experience with bombardment of my protected planets, only bombardment of planets, which were not protected.