radiate most of that energy to  space. Datas estimate of the interior surface space as 10 to the  16th square kilometers underestimates the total area by 31%. The  stats (figures are rounded): Sphere diameter: 200,000,000 km  (124,274,238 mi). Earths orbit: 299,000,000 km (186,000,000 mi).  Spheres internal surface area: 16,173,009,397,494,795 sq km.  Internal surface as reported by Data: 10,000,000,000,000,000 sq km.  Earth surface area: 148,393,355 sq km. Ratio of sphere area to Earth  area: 108,987,423 to 1.