// I fully agree with Steve (esp. with "beautiful" and "great";
//  here is my suggestion for a rounded dent on a half sphere.
//
//   Sputnik


intersection {
  blob {
    sphere { 0, 10, 1 }
    sphere { 15*y, 5.4, -5 }
    threshold 0.001
    //sturm
    }
  plane { -z, 0 }
  pigment { color rgb 1 }
  finish { ambient .4 diffuse .6 }
  }

light_source { <-3, 1, -2>*1000, rgb 1 }

camera { location <0, 1, -2>*2 look_at 0 translate 10*y }

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