Ark Galactapedia

Castra I

Castra I is a coreless planet in the Castra system, United Empire of Earth (UEE)). Too close to the sun to be terraformed for Human habitation, the UEE Navy used Castra I for target practice and weapons testing throughout the Messer Era (2546-2792), leaving it covered in craters. The swathes of glass left on the surface after centuries of weapon impacts will sometimes catch the light and make the planet appear to glitter.

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