Planetary barrier shield

Planetary barrier shield is a colony structure in Master of Orion.

Description
A Planetary Barrier Shield seals a planet in a nearly impenetrable energy field. This shield converts Radiated biomes into Barren by reducing solar radiation. It also protects the colony from orbital bombardment, reducing all damage against a planet. As long as the barrier shield is in place, neither ground Marines nor biological weapons can enter the planet�s atmosphere.